中国科学院数学与系统科学研究院期刊网
ARBITRARY DEGREE RAISING PROPERLIES AND CONVERSION ALGORITHM FOR GENEALIZED BALL-SPLINE CURVE AND SURFACE ON A TRIANGLE
LIU SONGTAO, LIU GENHONG
Acta Mathematicae Applicatae Sinica . 1996, (2): 243 -253 .  DOI: 10.12387/C1996033