Caudal medullary pathways to lumbosacral motoneuronal cell groups in the cat: evidence for direct projections possibly representing the final common pathway for lordosis.
Vanderhorst, V G, and G Holstege. 1995. “Caudal Medullary Pathways to Lumbosacral Motoneuronal Cell Groups in the Cat: Evidence for Direct Projections Possibly Representing the Final Common Pathway for Lordosis.”. The Journal of Comparative Neurology 359 (3): 457-75.