by Rüfenacht, J., Schaller, P., Audigé, L., Knutti, B., Küpfer, U., Peterhans, E.
Published in Theriogenology (15.07.2001)

by Hirsbrunner, Gaby, Knutti, B., Liu, I., Küpfer, U., Scholtysik, G., Steiner, A.
Published in Animal reproduction science (15.04.2002)

by Hirsbrunner, G., Knutti, B., Küpfer, U., Burkhardt, H., Steiner, A.
Published in Animal reproduction science (20.11.2003)

by Hirsbrunner, G, Knutti, B, Küpfer, U, Burkhardt, H, Steiner, A
Published in Animal reproduction science (20.11.2003)

by Hirsbrunner, G, Küpfer, U, Burkhardt, H, Steiner, A
Published in Theriogenology (01.08.1998)

by Hirsbrunner, G., Eicher, R., Küpfer, U., Burkhardt, H., Steiner, A.
Published in Theriogenology (15.07.2000)

by Reist, M., Koller, A., Busato, A., Kupfer, U., Blum, J.W.
Published in Theriogenology (15.09.2000)

by Busato, A., Faissler, D., Küpfer, U., Blum, J. W.
Published in Journal of veterinary medicine. Series A (01.11.2002)

by Busato, A., Romagnoli, S., Küpfer, U., Rossi, G.L., Bestetti, G.E.
Published in Theriogenology (15.07.1995)

by Hirsbrunner, G, Eicher, R, Küpfer, U, Burkhardt, H, Steiner, A
Published in Theriogenology (15.07.2000)

by Hirsbrunner, G, Knutti, B, Burkhardt, H, Kupfer, U, Steiner, A
Published in Journal of veterinary medicine. Series A (01.08.1999)

by Giger, R, Faissler, D, Busato, A, Blum, J, Küpfer, U
Published in Reproduction in domestic animals (01.12.1997)

by Koller, A, Reist, M, Blum, J.W, Kupfer, U
Published in Reproduction in domestic animals (01.02.2003)

by Knutti, B., Kupfer, U., Busato, A.
Published in Journal of veterinary medicine. Series A (01.12.2000)

by Kupfer, U, Stampfli, H
Published in Schweizer Archiv für Tierheilkunde (1981)

by Schuler, D, Kupfer, U, Zimmermann, F
Published in Schweizer Archiv für Tierheilkunde (1979)

by Luginbuhl, A, Kupfer, U
Published in Schweizer Archiv für Tierheilkunde (01.12.1980)

by Stampfli, G, Theus, T, Kupfer, U
Published in Schweizer Archiv für Tierheilkunde (01.11.1979)

by Giger, R, Faissler, D, Busato, A, Blum, J, Küpfer, U
Published in Reproduction in domestic animals (01.12.1997)

by Giger, R, Meier, H P, Küpfer, U
Published in Schweizer Archiv für Tierheilkunde (1997)