communications of the "van der waals-fund" influence of pressure on the solubility of gases / A. Michels, J. Gerver and A. Bijl communications of the "van der waals-fund" suggested explanation for some properties of liquid He II / by A. Michels, A. Bijl and J. de Boer mededelingen en verhandelingen Toepassing van statistische methoden in de klimatologie / Willem van der Bijl
