Blom, Erik. (1947): "Om spermaundersogelsesmetoder hos tyren (On methods of evaluating bull semen)." Reprinted from Den Danske Dyrlaegeforening, 1948.

Blom, Erik. (1947): "Om spermaundersogelsesmetoder hos tyren (On methods of evaluating bull semen)." Reprinted from Den Danske Dyrlaegeforening, 1948., Box: 1. Veterinary Reprint and Pamphlet Collection, 24-4-3369. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/262356 Accessed December 23, 2025.