communications of the "van der waals-fund" rapid expansion of compressed gas behind a piston, the effect of molecular interaction / by A. Michels, S.J. Jacobs, Z.I. Slawsky Sara, Vrouwe van Heinenoord : een waargebeurd verhaal / [ tekst: Janny Roos ; red. Willy Spaan en Rein van der Waal] Iets over de verdediging van het terrein tusschen Waal en Zuiderzee, naar aanleiding der brochure van Kainos / door S Verslag over de beproeving van bliksemafleiders / Bosscha, van der Waal, Grinwis scheiding van Maas en Waal onder verlegging van de uitmonding der Maas naar den Amer / bewerkt door M.C.E. Bongaerts communications of the "van der waals-fund" Contribution to the quantum-mechanical theory of the equation of state and the law of corresponding states : determination of the law of force of helium … communications of the "van der waals-fund" Measurements on the dielectric constant of CO2 at 25ÿê, 50ÿê and 100ÿêC up to 1700 atmospheres / by A. Michels and L. Kleerekoper communications of the "van der waals-fund" influence of the interaction of more than two molecules on the molecular distribution-function in compressed gases / by J. de Boer and A. Michels communications of the "van der waals-fund" Isotherms of CO2 between 0ÿê and 100ÿê C / G.P. Nijhoff, A.J.J. Gerver S.J. and A. Michels communications of the "van der waals-fund" measurement of the viscosity of gases at high pressures; The viscosity of nitrogen to 1000 atms / A. Michels and R.O. Gibson mitteilungen des "van der waals-fonds" Zur Dispersionstheorie des Schalles / A.J. Rutgers communications of the "van der waals-fund" Isotherms of nitrogen between 0ÿê and 150ÿê and at pressures from 20 to 80 atm / A. Michels, H. Wouters and J. de Boer