中国科学院数学与系统科学研究院期刊网
ON THE ORDERS AND ZEROS OF THE SOLUTIONS OF CERTAIN LINEAR DIFFERENTIAL EQUATIONS WITH ENTIRE COEFFICIENTS
Chun Lei CAO , Zong Xuan CHEN
Acta Mathematicae Applicatae Sinica . 2002, (1): 123 -131 .  DOI: 10.12387/C2002017