共 50 条
- [22] A SOIL SOUND FOR DETERMINATION THE OXYGEN CONCENTRATION IN THE SOIL AIR ZEITSCHRIFT FUR ACKER UND PFLANZENBAU-JOURNAL OF AGRONOMY AND CROP SCIENCE, 1981, 150 (06): : 489 - 494
- [23] DETERMINATION OF ORGANIC-COMPONENTS OF LOW CONCENTRATION IN THE AIR PLASTE UND KAUTSCHUK, 1981, 28 (04): : 226 - 228