Williams; Anderson; Ball; Bock; Carroll; Chiu -; Clineschmidt; Culberson; Erb; Evans; Fitzpatrick; Freidinger; Kaufman; Lundell; Murphy; Pawluczyk; Perlow; Pettibone; Pitzenberger; et al. Journal of Medicinal Chemistry, 1994 , vol. 37, # 5 p. 565 - 571