by Klastrup N.O
Published in Danish Dairy Industry (1978)

by Klastrup, N.O, Halliwell, R.W
Published in Nord Veterinaermed (1977)

by Klastrup, N.O
Published in Nye Dan Landbrug (1972)

by Klastrup, N.O. (The State Veterinary Serum Laboratory, Ringsted (Denmark))
Published in Kieler Milchwirtschaftliche Forschungsberichte (Germany, F.R.) (1985)

by Rasmussen M.D, Nielsen S.M, Frimer E.S, Horvath Z, Klastrup N.O, Madsen N.P
Published in Meddelelse. Statens Husdyrbrugsforsoeg (Denmark). no. 570 (1985)

by Klastrup, N.O, Halliwell, R.W. (Central Veterinary Lab., Lilongwe (Malawi))
Published in Nordisk Veterinaermedicin (Denmark) (01.07.1977)