▁after ▁ 1 9 4 5 , ▁small ▁parts ▁were ▁returned ▁again , ▁but ▁the ▁majority ▁remained ▁in ▁the ▁collections . ▁The ▁attention ▁of ▁the ▁collection ▁activity ▁was ▁directed ▁again ▁in ▁small ▁steps ▁toward ▁Central ▁and ▁Eastern ▁Europe . ▁ ▁In ▁ 1 9 6 6 , ▁large ▁parts ▁of ▁the ▁collections ▁were ▁moved ▁from ▁the ▁building ▁at ▁Jose fs platz ▁to ▁the ▁prem ises ▁of ▁the ▁Neue ▁Burg ▁wing ▁at ▁Hel den platz , ▁where ▁new ▁reading ▁h alls ▁were ▁set ▁up . ▁Due ▁to ▁the ▁rising ▁space ▁requirement ▁in ▁ 1 9 9 2 , ▁the ▁library ▁opened ▁up ▁to ▁approximately ▁ 4 ▁million ▁works . ▁W ider ▁ranges ▁for ▁reading ▁h alls ▁were ▁furn ished ▁at ▁the ▁same ▁time , ▁so ▁that ▁three ▁levels ▁are ▁currently ▁at ▁the ▁dispos al ▁of ▁visitors ▁( two ▁flo ors ▁of ▁the ▁main ▁reading ▁hall ▁and ▁the ▁magazine ▁reading ▁hall ). ▁ ▁For ▁an ▁extensive ▁amount ▁of ▁time , ▁the ▁library ▁used ▁a ▁card - catalog ▁index . ▁Since ▁ 1 9 9 5 , ▁an ▁electronic ▁system ▁has ▁been ▁in ▁place , ▁which ▁went ▁online ▁in ▁ 1 9 9 8 . ▁As ▁of ▁ 2 0 0 1 , ▁books ▁conf isc ated ▁from ▁Jewish ▁Aust ri ans ▁during ▁World ▁War ▁II ▁have ▁been ▁slowly ▁returned ▁to ▁the ▁he irs . ▁It ▁is ▁estimated ▁that ▁nearly ▁ 2 5 , 0 0 0 ▁works ▁fall ▁into ▁this ▁category . ▁ ▁Leg al ▁status ▁today ▁ ▁On ▁ 1 ▁January ▁ 2 0