Authors: Beeker, A Thibaudon, M

Citation: A. Beeker et M. Thibaudon, Pollen calendars., REV FR ALLE, 39(4), 1999, pp. 267-275

Authors: Beeker, A Van de Stadt, KD Bakker, K

Citation: A. Beeker et al., Melioidosis, NETH J MED, 54(2), 1999, pp. 76-79