1 1984A&A...141..362A Adelman 2 1993ApJ...419..276A Adelman et al. 3 1996MNRAS.282..953A Adelman et al. 4 1997MNRAS.288..470A Adelman et al. 5 1999MNRAS.305..591A Adelman et al. 6 2001A&A...367..297A Adelman et al. 7 2001MNRAS.328.1144A Adelman et al. 8 2004ApJS..155..179A Adelman et al. 9 2006A&A...447..685A Adelman et al. 10 2014PASP..126..505A Adelman 11 1987A&A...186..223A Alecian and Artru 12 2009A&A...506...69A Alecian et al. 13 2016A&A...589A..47A Alecian et al. 14 2012MNRAS.421L..82A Alentiev et al. 15 1987A&A...182..273A Artru and Lanz 16 2011A&A...535A..25B Bailey et al. 17 2013MNRAS.432.1687B Bailey and Landstreet 18 2014A&A...561A.147B Bailey et al. 19 1998ApJ...504..533B Bohlender et al. 20 1987Ap&SS.139..295B Bolcal.et al. 21 1991Ap&SS.185..237B Bolcal.et al. 22 1995A&AS..110..441B Bonifacio et al. 23 2008MNRAS.386.2039B Bruntt et al. 24 2003MNRAS.346...27B Budaj and Iliev 25 1987A&A...172..257B Burkhart et al. 26 1989A&A...220..197B Burkhart and Coupry 27 1991A&A...249..205B Burkhart and Coupry 28 1998A&A...338.1073B Burkhart and Coupry 29 2000A&A...354..216B Burkhart and Coupry 30 2005A&A...429.1043B Burkhart et al. 31 0004-6361:20021122 Carrier et al. 32 1998CoSka..27..192C Castelli 33 2003A&A...407..669C Catanzaro et al. 34 2004A&A...425..263C Castelli and Hubrig 35 2006MNRAS.373..330C Catanzaro and Leone 36 2010A&A...509A..21C Catanzaro 37 1986A&AS...64..477C Coupry et al. 38 1973ApJ...183..127C Cowley et al. 39 1978PASP...90..536C Cowley et al. 40 2000MNRAS.317..299C Cowley et al. 41 2007MNRAS.377.1579C Cowley et al. 42 2008MNRAS.384.1588C Cowley and Hubrig 43 2016ApJ...826..158C Cowley et al. 44 2013MNRAS.436.1639C Cunha et al. 45 2002A&A...385..111D Dolk et al. 46 2003A&A...402..299D Dolk et al. 47 2005IAUS..228...89D Drake et al. 48 2000MNRAS.318.1264D Dworetsky and Budaj 49 2004IAUS..224..727D Dworetsky 50 2008CoSka..38..141D Dworetsky et al. 51 2008MNRAS.385.1523D Dworetsky et al. 52 2008MNRAS.390.1250E Elkin et al. 53 2010MNRAS.404L.104E Elkin et al. 54 2010MNRAS.401L..44E Elkin et al. 55 2011MNRAS.415.2233E Elkin et al. 56 2014MNRAS.444.1344E Elkin et al. 57 2007pms..conf..189F Folsom et al. 58 2008MNRAS.391..901F Folsom et al. 59 2010MNRAS.407.2383F Folsom et al. 60 2013MNRAS.431.1513F Folsom et al. 61 2013MNRAS.433.3336F Folsom et al. 62 2007A&A...476..911F Fossati et al. 63 2008A&A...483..891F Fossati et al. 64 2008A&A...485..257F Fossati et al. 65 2009A&A...503..945F Fossati et al. 66 2011MNRAS.413.1132F Fossati et al. 67 2008MNRAS.389..441F Freyhammer et al. 68 2008A&A...479..189G Gebran et al. 69 2010A&A...523A..71G Gebran et al. 70 1998CoSka..27..280G Gelbmann 71 2000A&A...356..200G Gelbmann et al. 72 1989A&AS...81..127G Gerbaldi et al. 73 2005AstL...31..327G Glagolevskij et al. 74 2006Ap.....49..497G Glagolevskij et al. 75 2013AstBu..68..454G Glagolevskij et al. 76 2012AstL...38..771G Gontcharov 77 2010MNRAS.402.2539G Gonzalez et al. 78 1997A&A...319..637H Hack et al. 79 1997A&AT...13..283H Hack et al. 80 1999A&A...341..190H Hubrig et al. 81 2012A&A...542A..31H Hubrig et al. 82 1998A&A...332..224H Hui-Bon-Hoa and Alecian 83 1986Afz....25..237I Iliev, Lyubimkov and Savanov 84 1994cpms.conf..126I Iliev and Barzova 85 2006MNRAS.370..819I Iliev et al. 86 2017JASS...34...75J Jeong et al. 87 1999MNRAS.303..555J Jomaron et al. 88 2010MNRAS.401.1299J Joshi et al. 89 1999PASJ...51...23K Kato and Sadakane 90 1986ApJ...307..768K Khokhlova et al. 91 2016AJ....151...49K Kilicoglu et al. 92 1988Ap&SS.149..273K Kocer et al] 93 2003A&A...404..669K Kochukhov 94 2005A&A...439.1093K Kochukhov et al. 95 2006A&A...450..763K Kochukhov and Bagnulo 96 2006A&A...460..831K Kochukhov et al. 97 2008A&A...479L..29K Kochukhov et al. 98 2009A&A...499..851K Kochukhov et al. 99 1998A&A...330..651K Kuenzli and North 100 1994cpms.conf..130K Kupka et al. 101 2004MNRAS.352..863K Kupka et al. 102 2007MNRAS.380..741K Kurtz et al. 103 2011MNRAS.414.2550K Kurtz et al. 104 1987SvAL...13..212K Kuznetsova 105 1988ApJ...326..967L Landstreet 106 2009A&A...503..973L Landstreet et al. 107 1990ESASP.310..275L Lanz and Artru 108 1993A&A...272..465L Lanz et al. 109 2015MNRAS.453.3766L LeBlanc et al. 110 1981ApJ...250..687L Leckrone 111 1999AJ....117.1454L Leckrone et al. 112 1993A&A...279..167L Leone et al. 113 1995A&A...294..223L Leone et al. 114 1992AZh....69..552L Leushin et al. 115 2010A&A...509A..43L Lueftinger et al. 116 1986ApJ...308..254M Magazzu and Cowley 117 2012A&A...539A.142M Makaganiuk et al. 118 1990MNRAS.246..699M Martinez et al. 119 1999ApJ...511..422M Matthews et al. 120 1990A&A...237..402M Monier and Megessier 121 2014sf2a.conf..497M Monier et al. 122 2015A&A...577A..96M Monier et al. 123 2016Ap&SS.361..139M Monier et al. 124 2013A&A...552A..28N Nesvacil et al. 125 2014MNRAS.442.3761N Netopil et al. 126 2017MNRAS.468.2745N Netopil et al. 127 2013AN....334..638N Neuteufel et al. 128 2000A&A...356..146N Nielsen and Wahlgren 129 2009A&A...506..213N Niemczura et al. 130 2015MNRAS.450.2764N Niemczura et al. 131 2017MNRAS.470.2870N Niemczura et al. 132 2004A&A...420..673N Nishimura et al. 133 1996A&AS..118..283P Pintado and Adelman 134 2004IAUS..224..665P Polosukhina et al. 135 1999A&A...352..555A Prieto and Lambert 136 2000A&A...359.1085P Przybilla et al. 137 1991A&A...246..195R Rice and Wehlau 138 1994PASP..106..134R Rice and Wehlau 139 1999ApJ...524..974R Roby et al. 140 2016AstBu..71..447R Romanyuk et al. 141 2016A&A...588A.138R Rusomarov et al. 142 ................... Ryabchikova and Ptitsyn 978-94-009-4714-6_50 143 1996MNRAS.283.1115R Ryabchikova et al. 144 1997A&A...322..234R Ryabchikova et al. 145 1997A&A...327.1137R Ryabchikova et al. 146 1998CoSka..27..319R Ryabchikova 147 1999A&A...351..963R Ryabchikova et al. 148 1999A&A...343..229R Ryabchikova et al. 149 2000A&A...357..981R Ryabchikova et al. 150 2001ARep...45..382R Ryabchikova et al. 151 2004A&A...423..705R Ryabchikova et al. 152 2005A&A...438..973R Ryabchikova et al. 153 2006A&A...445L..47R Ryabchikova et al. 154 2006A&A...456..329R Ryabchikova et al. 155 2008A&A...480..811R Ryabchikova et al. 156 2017AstL...43..252R Ryabchikova and Romanovskaya 157 1983ApJ...274..261S Sadakane et al. 158 1989PASJ...41.1055S Sadakane and Okyudo 159 2011RMxAA..47..219S Saffe et al. 160 1998AstL...24..516S Savanov and Kochukhov 161 2003A&A...410..299S Savanov and Hubrig 162 2008AstL...34..413S Semenko et al. 163 2011AstL...37...20S Semenko et al. 164 2001A&A...372..571S Shavrina et al. 165 2004IAUS..224..711S Shavrina et al. 166 2013OAP....26..112S Shavrina et al. 167 2013arXiv1304.4175S Shavrina et al. 168 2008A&A...487..689S Shulyak et al. 169 2009A&A...499..879S Shulyak et al. 170 2010A&A...520A..88S Shulyak et al. 171 2010A&A...509A..28S Shulyak et al. 172 2015MNRAS.452.3334S Smalley et al. 173 1993A&A...276..393S Smith 174 1993A&A...274..335S Smith and Dworetsky 175 1994A&A...291..521S Smith 176 1996Ap&SS.237...77S Smith 177 1996A&A...305..902S Smith et al. 178 1997A&A...319..928S Smith 179 2012MNRAS.420.1207S Stateva et al. 180 2001A&A...378..153S Strasser et al. 181 2006ApJ...653..675S Su et al. 182 1986ApJ...304..425T Takada-Hidai et al. 183 1996PASJ...48..739T Takada-Hidai and Takeda 184 2011MNRAS.410..190T Tetzlaff et al. 185 2012AstL...38..721T Titarenko et al. 186 2013MNRAS.431.3685T Tkachenko et al. 187 2001A&A...376..885U Usenko et al. 188 1989A&A...224..171V Vant Veer-Menneret et al. 189 1999A&A...341..233V Varenne 190 1999A&A...351..247V Varenne and Monier 191 1998ASPC..143..330W Wahlgren et al. 192 2000A&A...362L..13W Wahlgren and Hubrig 193 2000ApJ...539..908W Wahlgren et al. 194 1981ApJ...247..969W Wegner 195 2000ASPC..203..487W Weiss et al. 196 1999ApJ...520L..55W Woolf and Lambert 197 1999ApJ...521..414W Woolf and Lambert 198 2011A&A...528A..37Y Yuce et al. 199 1999AstL...25..453Y Yushchenko et al. 200 2004A&A...425..171Y Yushchenko et al. 201 2007ApJ...655.1046Z Zavala et al. 202 1980BAICz..31..300Z Ziznovsky 203 2012A&A...537A.120Z Zorec and Royer 204 1990BAICz..41..345Z Zverko et al. 205 2016AJ....151...49K Kilicoglu et al. 206 2015MNRAS.449.3945S Shultz et al. 207 2014A&A...562A.128S Saffe and Levato 208 2013A&A...551A..14S Shulyak et al. 209 2011MNRAS.413.1132F Fossati et al. 210 2010A&A...517A...3C Catanzaro et al. 211 2009A&A...499..567K Krticka et al. 212 2007AstBu..62..319G Glagolevskij et al. 213 2006ARep...50..123R Rachkovskaya et al. 214 2006AstL...32...54G Glagolevskij et al. 215 2004A&A...418.1073W Wahlgren and Hubrig 216 2004A&A...413..273B Briquet et al. 217 1997A&A...321..254C Castelli et al. 218 1981PASJ...33..413M Mon and Hirata 219 2017A&A...597L...6C Castro et al. 220 2016A&A...587A...7P Przybilla et al. 221 2000CoSka..30...12Z Zboril and North 222 1999A&A...345..244Z Zboril and North 223 1999A&A...351..554H Hunger and Groote 224 1998CoSka..27..371Z Zboril and North 225 1997A&A...324..949Z Zboril et al. 226 1994cpms.conf...82Z Zboril 227 1982A&AS...50...77G Groote et al. 228 2018MNRAS.477..882K Khalack 229 2017MNRAS.471..926K Khalack et al.