by Galvão, K.N., Flaminio, M.J.B.F., Brittin, S.B., Sper, R., Fraga, M., Caixeta, L., Ricci, A., Guard, C.L., Butler, W.R., Gilbert, R.O.
Published in Journal of dairy science (01.07.2010)

by Gonçalves, N.J.N., Bressan, F.F., Roballo, K.C.S., Meirelles, F.V., Xavier, P.L.P., Fukumasu, H., Williams, C., Breen, M., Koh, S., Sper, R., Piedrahita, J., Ambrósio, C.E.
Published in Theriogenology (01.04.2017)

by Bailey, C S, Heitzman, J M, Buchanan, C N, Bare, C A, Sper, R B, Borst, L B, Macpherson, M, Archibald, K, Whitacre, M
Published in Equine veterinary journal (01.12.2012)

by Galvão, K.N, Felippe, M.J.B, Brittin, S.B, Sper, R, Fraga, M, Galvão, J.S, Caixeta, L, Guard, C.L, Ricci, A, Gilbert, R.O
Published in Theriogenology (15.01.2012)

by Cheong, S.H, Nydam, D.V, Galvão, K.N, Crosier, B.M, Ricci, A, Caixeta, L.S, Sper, R.B, Fraga, M, Gilbert, R.O
Published in Theriogenology (15.03.2012)

by Bailey, C.S, Sper, R.B, Schewmaker, J.L, Buchanan, C.N, Beachler, T.M, Pozor, M.A, Whitacre, M.D
Published in Theriogenology (15.01.2012)

by SPER, J R, SILVERMAN, F N
Published in Radiology (01.12.1964)

by Valent, P, Baghestanian, M, Bankl, H C, Sillaber, C, Sperr, W R, Wojta, J, Binder, B R, Lechner, K
Published in Thrombosis and haemostasis (01.05.2002)

by Faedi; W.; Baruzzi, G.; Capriolo, G.; Maltoni, M.L.; Magnani, S.; Parillo, R.; Sbrighi, P. (Ist. Sper. per la Frutticoltura, Rome (Italy)); Di Milano, F.; Di Stefano, A.; Mennone, C. (ALSIA, Matera (Italy). Az. Agr. Sper. Dim. Pantanello); Lucchi, P. (CRPV, Cesena, Forlì (Italy)); Martelli, G.; Quinto, G. (Basilicata Univ., Potenza (Italy). Dip. di Biologia, Difesa e Biotecnologie Agroforestali)
Published in Rivista di Frutticoltura e di Ortofloricoltura (Italy) (01.04.2004)