000 00365nam a2200133Ia 4500
008 100324s9999 xx 000 0 und d
100 _aVittas D
245 _aSimple algebra of pension plans
260 _c1993
_bWorld Bank
_aWashington DC
366 _b1993
650 _aAccounting
942 _cBK
999 _c75882
_d75882