共 50 条
- [1] ECONOMIC-EFFICIENCY OF PIG BREEDING SCHEMES - BREEDING COMPANY VIEW LIVESTOCK PRODUCTION SCIENCE, 1977, 4 (03): : 245 - 254
- [2] ECONOMIC-EFFICIENCY OF PIG BREEDING SCHEMES - ASPECTS OF A NATIONAL 2-BREED PROGRAM LIVESTOCK PRODUCTION SCIENCE, 1977, 4 (03): : 225 - 243
- [8] ANTITRUST AND ECONOMIC-EFFICIENCY - INTRODUCTION JOURNAL OF LAW & ECONOMICS, 1985, 28 (02): : 245 - 246