1. Genic control of the postembryonic development of Nippostrongylus brasiliensis;Bolla;Comp. Biochem. Physiol.,1971
2. In vitro nutritional requirements of Nippostrongylus brasiliensi—I. Effects of sterols, sterol derivatives and heme compounds on the free-living stages;Bolla;Comp. Biochem. Physiol.,1972
3. Yeast ribosomes as a source of growth factor for nematodes;Buecher;Nematologica,1969
4. A nematode growth factor from baker's yeast;Buecher;J. Nematol.,1970
5. Growth of nematodes in defined medium containing hemin and supplemented with commercially available proteins;Buecher;Nematologica,1970