000
00253nam a2200097Ia 45e0
008
181001s2018 xx 000 0 und d
100
_a
Chaturvedi J.C
245
0
_a
Spherical Harmonic
260
_a
Agra
_b
Stu. Frend.co. Agra
942
_2
ddc
_c
BK
999
_c
23
_d
23