efficiency of electrostatic air filters in a SPF rat breeding unit / J.L.F. Gerbrandy, D. van der Waay and H.C. Bartlema rapport Preferential release of newly synthesized acetyl-choline by cortex slices from rat brain / P.C. Molenaar and R.L. Polak Rats, kuch en bonen of ... meer / door luitenant-kolonel b.d. Douwe Brouwer
