TY - JOUR A1 - Watts, C.H. A1 - May, R.M. T1 - The influence of concurrent partnerships on the dynamics of HIV/AIDS Y1 - 1992 DO - 10.1016/0025-5564(92)90006-I JF - Mathematical Biosciences VL - 108 IS - 1 SP - 89 EP - -104 ER -