by McPherron, T.A, Tarvin, G.B, Froehlich, P.S, Brock, K.A
Published in Journal of the American Veterinary Medical Association (15.08.1980)

by Stowater, J L, Kneller, S K, Froehlich, P S
Published in Veterinary medicine, small animal clinician : VM, SAC (01.02.1978)

by Jeroch, H. (Karl-Marx-Universitaet Leipzig (German D.R.). Sektion Tierproduktion und Veterinaermedizin), Souffrant, S. (LPG (P) "Paul Froehlich", Leipzig (German D.R.)), Roetschke, W. (Martin-Luther-Universitaet Halle-Wittenberg (German D.R.). Setion Pflanzenproduktion)
Published in Tierzucht (German D.R.) (1987)