中国科学院数学与系统科学研究院期刊网
ASYMPTOTIC EXPANSION IN L[0,r_m] FOR THE POPULATION EVOLUTION AND CONTROLLABILITY OF THE POPULATION SYSTEM
YU JING-YUAN;GUO BAO-ZHU;ZHU GUANG-TIAN
Acta Mathematicae Applicatae Sinica . 1987, (2): 97 -104 .  DOI: 10.12387/C1987018