共 50 条
- [31] NITROGEN-COMPOUNDS IN TOLUENE-SOLUBLE COAL-TAR-PITCH FRACTIONS ERDOL & KOHLE ERDGAS PETROCHEMIE, 1989, 42 (06): : 246 - 248
- [35] THE DIGESTIBILITY OF NITROGEN-COMPOUNDS CONTAINED IN BULK FODDER, CONTENT OF THE SOLUBLE FRACTION OF NITROGEN-COMPOUNDS AND THE BALANCE OF NITROGEN IN WETHERS ZIVOCISNA VYROBA, 1983, 28 (09): : 713 - 720