1. K. Boldman, L.D. Van Vleck, and L.A. Kriese (1993 ) A Manual for Use of MTDFREML - A Set of Programs to Obtain Estimates of Variances and Covariances (Draft) . Departament of Agriculture/Agricultural Research Service, Lincoln, 120 p.
2. Genetics of Racing Performance in the American Quarter Horse: I. Description of the Data
3. C.H. Carrol (1990 ) Handicapping Speed: The Thoroughbred and Quarter Horse sprinters Lyong and Burford . Publishers Nova Iorque, USA, p. 226 .
4. Factors Influencing Racing Performance of the Standardbred Pacer1