中国科学院数学与系统科学研究院期刊网
THE SOLUTION AND ASYMPTOTITY OF NONLINEAR POPULATION EVOLUTION EQUATION
Zhang Sheng-hai, Zhu Guang-tian
Acta Mathematicae Applicatae Sinica . 1991, (3): 289 -295 .  DOI: 10.12387/C1991040