Shen, Hong. “NEW CONCEPTS AND TEST METHODS OF CURVE PROFILE AREA DENSITY IN SURFACE: ESTIMATION OF AREAL DENSITY ON CURVED SPATIAL SURFACE”. Image Analysis and Stereology 20, no. 1 (May 3, 2011): 59–64. Accessed April 30, 2025. http://233.ablak.arnes.si/ojs/index.php/IAS/article/view/658.