The following publications are possibly variants of this publication:
- Descriptive definitions of potential and actual infinitiesWujia Zhu, Yi Lin, Ningsheng Gong, Guoping Du. kybernetes, 37(3/4):424-432, 2008. [doi]
- Mathematical system of potential infinities (I) - preparationWujia Zhu, Yi Lin, Guoping Du, Ningsheng Gong. kybernetes, 37(3/4):489-493, 2008. [doi]