共 50 条
- [42] LOW-LEVELS OF DOXYCYCLINE IN BRONCHIAL-SECRETIONS [J]. MEDICAL JOURNAL OF AUSTRALIA, 1976, 2 (15) : 582 - 583
- [44] EFFECTS OF LOW-LEVELS OF OZONE ON PLANT COMPETITION [J]. JOURNAL OF APPLIED ECOLOGY, 1977, 14 (03) : 877 - 880
- [46] ENHANCEMENT OF LUMINESCENCE IN GAAS BY LOW-LEVELS OF CU [J]. APPLIED PHYSICS LETTERS, 1991, 58 (07) : 714 - 716
- [48] EFFECTS OF LOW-LEVELS OF ANTIBIOTICS IN LIVESTOCK FEEDS [J]. ACS SYMPOSIUM SERIES, 1986, 320 : 112 - 126