共 50 条
- [6] EXISTENCE THEOREMS FOR 1-TO-1 MAPPINGS ASSOCIATED WITH ELLIPTIC SYSTEMS OF SECOND ORDER 2 JOURNAL D ANALYSE MATHEMATIQUE, 1966, 17 : 145 - &
- [10] Locally 1-to-1 maps and 2-to-1 retractions HOUSTON JOURNAL OF MATHEMATICS, 2001, 27 (01): : 35 - 44