Hansen, A. K., P. Thomsen, and V. Krafi. “Selective Breeding for Non-Responders Modifies Serological Response to Infection With Parvovirus in Rats Kept Together With Randomly Bred Rats”. Scandinavian Journal of Laboratory Animal Science, vol. 20, no. 3, Dec. 1993, doi:10.23675/sjlas.v20i3.735.