King, S.S., L.G. Nequin, S. Drake, T.S. Hebner, J.F. Roser, J.W. Evans.  Progesterone levels correlate with impending anestrus  in  the mare.  J. Equine Veterinary Science.  8:109-111.  1988.
King, S.S., L.G. Nequin. Spontaneously prolonged corpus luteum activity is a common route into anestrus in the mare.             Proceedings 12th Equine Nutrition and Physiology Symposium.  p. 207-208.  1991.
Neumann, K.R., B.J. Weedman, S.S. King, L.G. Nequin.  An analysis of the patterns of cyclicity and acyclicity during the winter  months in northern hemispheric mares.  J. Animal Science.  Suppl. 1:270 (Abstr).  1992.
King, S.S., K.R. Neumann, L.G. Nequin, B.J. Weedman.  Time of onset and ovarian state prior to entry into winter anestrus.  J. Equine Veterinary Science.  13:512-515.  1993.
Weedman, B.J., S.S. King, K.R. Neumann, L.G. Nequin.  Comparison of circulating estradiol-17ß and folliculogenesis during  the breeding season, autumn transition and anestrus in the mare.  J. Equine Veterinary Science.  13:502-505.  1993.
Weedman, B.J., S.S. King, L.G. Nequin, K.R. Neumann.  Anomalous cycle events precede onset of anestrus in the mare.          Biology of Reproduction.  48 Suppl. 1:87(Abstr).  1993.
Soderstrom, B.L., S.S. King, L.G. Nequin, M.L. Mallar, L. Hoffman, J.J. Crawford, W.J. Silvia, P. Burns.  The temporal              sequence of progesterone and 13, 14-Dihydro, 15-Keto PGF_2a  in summer and fall transitional mares.  Proceedings 16th  Equine Nutrition and Physiology Symposium.  P202-203.  1999.
Nequin, L.G., S.S. King, J.F. Roser, B.L. Soderstrom, E.M. Carnevale, K.R. Neumann.  Uncoupling of the reproductive axes    during transition into anestrus.  J. Reproduction and Fertility.  Suppl. 56:153-161.  2000.
King, S.S., M.L. Mallar, L.G. Nequin, J.F. Roser, D.L. Cross.  Evidence against dopaminergic influence over the fall transition.   Proceedings 17th Equine Nutrition and Physiology Symposium.  P298-300.  2001.