000 00283nam a2200133Ia 4500
008 210922s9999 xx 000 0 und d
100 _aMEHTA
245 0 _aNON CONVENTIONAL ENERGY SOURCES
260 _bYESDEE
260 _c2019
365 _b395
650 _aENS
942 _cBK
999 _c236059
_d236059