Vererbungsstudien im Koniglichen Hauptgestut Trakehnen - Studies of Heredity at the Royal Main Stud Trakehnen Dr. Bruno Schmidt, 1913, reprint 1999, hardcover, 363 pgs, 21 b/w photos. 236 pedigree tables. Bibliography. In German. Reprint of classic work on major stallion and mare lines..Extensive pedigree tables useful even to non-German language readers (pedigree tables fully indexed).