APA

Sterzik K., Strehler E., Abt M. & Rosenbusch B. (19940617). In vitro kallikrein treatment of human spermatozoa: stimulation of sperm penetration into zona-free hamster eggs depends on the quality of initial semen parameters but not on constituents of the kallikrein-kinin system in seminal plasma. : The Journal of urology.

Chicago

Sterzik K, Strehler E, Abt M and Rosenbusch B. 19940617. In vitro kallikrein treatment of human spermatozoa: stimulation of sperm penetration into zona-free hamster eggs depends on the quality of initial semen parameters but not on constituents of the kallikrein-kinin system in seminal plasma. : The Journal of urology.

Harvard

Sterzik K., Strehler E., Abt M. and Rosenbusch B. (19940617). In vitro kallikrein treatment of human spermatozoa: stimulation of sperm penetration into zona-free hamster eggs depends on the quality of initial semen parameters but not on constituents of the kallikrein-kinin system in seminal plasma. : The Journal of urology.

MLA

Sterzik K, Strehler E, Abt M and Rosenbusch B. In vitro kallikrein treatment of human spermatozoa: stimulation of sperm penetration into zona-free hamster eggs depends on the quality of initial semen parameters but not on constituents of the kallikrein-kinin system in seminal plasma. : The Journal of urology. 19940617.