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Retrieved 22
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Unshelm J (February 1990). "Verhaltensänderungen von
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Small Dogs
Archived March 3, 2016, at the
Wayback Machine Heidenberger E,
Unshelm J (1990). "[Changes in the
behavior of dogs
after castration]". Tierarztl...
- Avg. 3rd Avg. 01 1928
Reims Edmond Soussa 0,552
Carel Koopman 0,493 Otto
Unshelm 0,489 02 1929
Brussels Edmond Soussa 0,604
Emile Zaman 0,720
Arnoud Sengers...