000 00271nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a546.271
_bMAT
100 _aMatrovich, V I
245 0 _aBoron and refractory borides
260 _aBerlin
_bSpringer
_c1977
942 _cBK
999 _c28750
_d28750