Information Processing Letters
Information Processing Letters > 1997 > 61 > 5 > 247-252
Information Processing Letters > 1997 > 61 > 5 > 265-269
Information Processing Letters > 1997 > 61 > 5 > 241-246
Information Processing Letters > 1997 > 61 > 5 > 233-239
Information Processing Letters > 1997 > 61 > 5 > 259-264
Information Processing Letters > 1997 > 61 > 5 > 279-284
Information Processing Letters > 1997 > 61 > 5 > 227-232
Information Processing Letters > 1997 > 61 > 5 > 271-278
Information Processing Letters > 1997 > 61 > 5 > 253-258