000 00276nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aInstructional Science
260 _aKluwer Academic Publishers
_bDordrecht
_c1 Jan-30 Jun,2014
362 _a42-42
_b01-Mar
942 _2ddc
_cJ
999 _c185528
_d185528