000 00293pam a2200097a 44500
082 _aTR
_bRRC-22
100 _aL. Srinivasan
245 1 _aThree dimensional multigroup diffusion theory codes VANITA and TRIPHEX based on the method of variational calculus
260 _a
_b
_c
997 _aTR3776 C
999 _c404930
_d404930