APA

Lensing H. H., Behr-Gross M. E., Daas A. & Spieser J. M. (20030703). Collaborative study for the establishment of two European Pharmacopoeia Biological Reference Preparations for serological potency testing of tetanus vaccines for veterinary use. : Developments in biologicals.

Chicago

Lensing H H, Behr-Gross M E, Daas A and Spieser J M. 20030703. Collaborative study for the establishment of two European Pharmacopoeia Biological Reference Preparations for serological potency testing of tetanus vaccines for veterinary use. : Developments in biologicals.

Harvard

Lensing H. H., Behr-Gross M. E., Daas A. and Spieser J. M. (20030703). Collaborative study for the establishment of two European Pharmacopoeia Biological Reference Preparations for serological potency testing of tetanus vaccines for veterinary use. : Developments in biologicals.

MLA

Lensing H H, Behr-Gross M E, Daas A and Spieser J M. Collaborative study for the establishment of two European Pharmacopoeia Biological Reference Preparations for serological potency testing of tetanus vaccines for veterinary use. : Developments in biologicals. 20030703.