1. Thierisches Leben ohne Baktieren in Verdauungskanal;Nuttall, G.H.F.; Thierfelder, H.;Z. physiol. Chem,1895
2. Flexible film apparatus for the rearing and use of germfree animals;Trexier, P.C.; Reynolds, L.I.;Appi. Microbiol,1957
3. Microbiological isolation of large animais;Trexler, P.C.;Vet. Rec,1971
4. Application of the technology of the germfree laboratory to special problems of patient care;Levenson, S.M.; Trexler, P.C.; LaConte, M.; Pulaski, E.J.;Amer. J. Surg,1964
5. The Germfree Animal in Research;Coates, M.E.,1968