共 9 条
- [2] TOXAPHENE INSECTICIDE - COMPLEX BIODEGRADABLE MIXTURE [J]. SCIENCE, 1974, 183 (4124) : 520 - 521
- [4] NUTRITION AND GROWTH OF SEVERAL BLUE-GREEN ALGAE [J]. AMERICAN JOURNAL OF BOTANY, 1955, 42 (03) : 282 - 287
- [5] NELSON JO, 1974, THESIS U WISCONSIN
- [7] WITEK S, 1964, CHEM STOSOWANA A, V8, P153
- [8] WITEK S, 1973, COMMUNICATION SEP
- [9] 1951, Patent No. 2565471