TY - GEN AU - Mohammed Awny Ahmed Dabbour AU - M.Amin , TI - Studies of some electrical properties of single crystals of the A2 BX4 ferroelectric family / PY - 1999/// CY - Cairo : PB - Mohammed Awny Ahmed Dabbour , N1 - Thesis (Ph.D.) - Cairo University - Faculty Of Science - Department Of Physics UR - http://172.23.153.220/th.pdf ER -