by DE WAAL, V. J, SCHRIJNER, P, LLURBA, R
Published in Journal of low temperature physics (01.02.1984)

by DE WAAL, V. J, KALPVIJK, T. M, VAN DEN HAMER, P
Published in Journal of low temperature physics (01.11.1983)

by Bruines, J. J. P., de Waal, V. J., Mooij, J. E.
Published in Journal of low temperature physics (01.02.1982)

by de Waal, V., van Nieuwenhuyzen, G., Klapwijk, T.
Published in IEEE transactions on magnetics (01.05.1983)

by de Waal, V., van den Hamer, P., Mooij, J., Klapwijk, T.
Published in IEEE transactions on magnetics (01.01.1981)

by Booyens, J., Frank, M. de V., de Waal, V.M. & Calitz, F.
Published in South African medical journal (21.06.1969)

by Booyens, J., Frank, M. de V., de Waal, V.M., Campbell, G.D. & Goldberg, M.D.
Published in South African medical journal (07.03.1970)