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Netherlands 17, 520 Five-colour observations of 24 classical cepheids 8 Walraven J.H., Tinbergen J., Walraven Th. (1964) Bull. Astron. Inst. Netherlands 17, 520 Five-colour observations of 24 classical cepheids 9 Antalova A., Graham J.A. (1976) Bull. Astron. Inst. Czechoslovakia 27, 193 Interstellar absorption in the region of ass Scorpius OB4 10 Pel J.W. (1975) Astron. Astrophys. Suppl. 24, 413 Five-channel photometry of cepheids and supergiants in the southern Milky Way 11 Walraven Th., Walraven J.H. (1977) Astron. Astrophys. Suppl. 30, 245 Five channel photometric observations of stars in the Magellanic Clouds and in the Milky Way 12 Oosterhoff P.Th., Walraven Th. (1966) Bull. Astron. Inst. Netherlands 18, 387 Discussion of photo-electric five-colour observations of different types of pulsating variables 13 Walraven J.H. (1969) Inf. Bull. Southern Hemisph. no 15 Photoelectric observations of W Serpentis 14 Walraven J.W., Walraven Th. (1969) Inf. Bull. Southern Hemisph. no 17 On the binary BL Telescopii 15 van Genderen A.M., The P.S. (1978) Astron. Astrophys. 64, L1-L2 Is the star TR 27-102 (HD 159378) a long-period cepheid 16 van Genderen A.M. (1977) Astron. Astrophys. 54, 683 Five-colour photometry of the X-ray binary HD 153919 (3U 1700-37) 17 Walraven J.H., Walraven Th. (1975) Monthly Notices Roy. Astron. Soc. 34, 56 Some observations of bright Magellanic Cloud stars with a 12-channel scanning photometer 18 van Paradijs J. (1977) Astron. Astrophys. Suppl. 29, 339 VBLUW photometry of SK 160 (SMC X-1) 19 The P.S., Bakker R., Wesselink T.J.H., van der Linden Th.J., van Genderen A.M. (1978) Astron. Astrophys. Suppl. 33, 213 The variable shell star HR 5999. III. A new lightcurve based on Walraven and Stromgren photometries 20 Lub J., Pel J.W. (1977) Astron. Astrophys. 54, 137 Properties of the Walraven VBLUW photometric system 21 Oosterhoff P.Th., Ponsen J. (1966) Bull. Astron. Inst. Netherlands 18, 150 Discussion of five-colour observations of stars of high velocity 22 van Genderen A.M. (1967) Bull. Astron. Inst. Netherlands 19, 197 Five-colour photometry of the X-ray source SCO X-1 23 Lub J. (1976) Astron. Astrophys. Suppl. 29, 345 An atlas of light and colour curves of field RR Lyrae stars 24 van Genderen A.M. (1977) Astron. Astrophys. 54, 737 A discussion on five-colour observations of SMC cepheids and the intrinsic differences with galactic cepheids. The dust content of the SMC 25 van Genderen A.M. (1977) Astron. Astrophys. 54, 733 Five colour photometry of Henize 787 and Henize 788 =Wray 977, the probable counterpart of the X-ray source 3U 1223-62 26 The P.S. (1977) Astron. Astrophys. 60, 423 On the reality of the open cluster Ly 6 and membership of the cepheid TW Nor 27 Oosterhoff P.Th. (1966) Bull. Astron. Inst. Netherlands 18, 140 Multi-periodicity in the light-variation of the RRs-type variable V703 Scorpii 28 van Genderen A.M. (1969) Bull. Astron. Inst. Netherlands 20, 317 Five-colour photometry of 12 cepheids in the Small Magellanic Cloud 29 van Genderen A.M. (1973) Astron. Astrophys. Suppl. 9, 149 Five-colour observations of the short-period pulsating star Delta Del 30 van Genderen A.M. (1979) Astron. Astrophys. Suppl. 38, 151 Long time baseline VBLUW photometry of four of the most luminous LMC supergiants HD 33579, HD 35343=S Dor, HDE 268757 and HDE 269006 (I) 31 van Genderen A.M. (1979 Astron. Astrophys. Suppl. 38, 381 Long time baseline VBLUW photometry of four of the most luminous LMC supergiants HD 33579, HD 35343=S Dor, HDE 268757 and HDE 269006 (II) 32 The P.S., Tjin a Djie H.R.E., Kudritzki R.P., Wesselius P.R. (1980) Astron. Astrophys. 91, 360 Studies of the Carina nebula III. The energy distribution of the very hot and massive star HD 92250 33 The P.S., Bakker R., Antalova A. (1980) Astron. Astrophys. Suppl. 41, 93 Studies of the Carina nebula : IV. A new determinition of the distances of the open clusters Tr 14, Tr 15, Tr 16 and Cr 228 based on Walraven photometry 34 Wamsteker W. (1981) Astron. Astrophys. Suppl. 43, 127 Five-colour photometry of blue stars in the Magellanic-Cloud region 35 The P.S., Arens M., van der Hucht K.A. (1982) Astrophys. Letters 22, 109 An investigation of the Scorpius open cluster C1715-387, containing two WN7, two Of and one red supergiant members 36 Verschoor J.N., van Genderen A.M. (1983) Astron. Astrophys. Suppl. 53, 419 VBLUW photometry of the open cluster NGC 2516 37 Bakker R., The P.S. (1983) Astron. Astrophys. Suppl. 52, 27 An investigation of the heavily reddened young open cluster Tr 27 on the Walraven photometric system 38 Waard G.J., van Genderen A.M., Bijleveld W. (1984) Astron. Astrophys. Suppl. 56, 373 VBLUW photometry of the open cluster NGC 4755 39 Nelles B., Richtler T., Seggewiss W. (1984) Astron. Astrophys. 139, 220 VBLUW photometry of some halo field giants 40 Nelles B., Seggewiss W. (1984) Astron. Astrophys. 139, 79 A photometric metallicity scale for globular clusters based on stars with known curve of growth chemical abundances 41 van Genderen A.M., Bijleveld W., van Groningen E. (1984) Astron. Astrophys. Suppl. 58, 537 VBLUW photometry of the association Sco OB1 (containing the open cluster NGC 6231) a discussion on the evolutionary stars of the hypergiant Zeta1 Sco (B1Ia) 42 The P.S., Felenbok P., Cuypers H., Tjin a Djie H.R.E. (1985) Astron. Astrophys. 149, 429 High resolution spectroscopic and photometric study of the possibility that HD 76534 and HD 163296 are Herbig Ae/Be-type stars 43 The P.S., Hageman T., Westerlund B.E., Tjin a Djie H.R.E. (1985) Astron. Astrophys. 151, 391 The spectral energy distribution of stars above the ZAMS in the central part of the open cluster NGC 6383 44 Steemers W.J.G., van Genderen A.M. (1986) Astron. Astrophys. 154, 308 VBLUW photometry of two hypergiants HD 80077 (B2Ia) and HD 74180 (F2Ia) and of the open cluster Pismis 11 45 The P.S., Wesselius P.R., Tjin a Djie H.R.E., Steenman H. (1986) Astron. Astrophys. 155, 347 Studies of the Chamaeleon star-forming region 46 Greve A., van Genderen A.M. (1986) Astron. Astrophys. 160, 392 VBLUW photometry of solar-type stars 47 disp. 48 van Paradijs J., van Amerongen S., Damen E., van der Woerd H. (1986) Astron. Astrophys. Suppl. 63, 71 Five-colour photometry of early-type stars in the direction of galactic X-ray sources 49 Diethelm R. (1986) Astron. Astrophys. Suppl. 64, 261 Physical parameters of pulsating variables with periods between one and three days. I. Photometry and metallicities 50 van Leeuwen F., Alphenaar P., Brand J. (1986) Astron. Astrophys. Suppl. 65, 309 A VBLUW photometric survey of the Pleiades cluster 51 Brand J., Wouterloot J.G.A. (1988) Astron. Astrophys. Suppl. 75, 117 The velocity field of the outer Galaxy in the southern hemisphere. III. Determination of distances to O, B and A type stars in the Walraven photometric system 55 Feldbrugge P.T.M., van Genderen A.M. (1991) Astron. Astrophys. Suppl. 91, 209 VBLUW photometry of thge very young open cluster NGC 2264 57 Winter D., Koulis C., The P.S., van den Ancker M.E., 57 Perez M.R., Bibo E.A. (1997) Astron. Astrophys. Suppl. 121, 223 Pre-main sequence candidates in the very young open cluster NGC 6611 58 van den Ancker M.E., The P.S., Feinstein A., Vazquez R.A., 58 de Winter D., Perez M.R. (1997) Astron. Astrophys. Suppl. 123, 63 A multiwavelength study of star formation in the very young open cluster NGC 6530