A document searching system searches for other documents having a user-specified document cited therein as its referred document to thereby uncover the latest document associated with the user-specified document. In related document searching method, document information is registered in a text...http://www.google.fr/patents/US5832476?utm_source=gb-gplus-shareBrevet US5832476 - Document searching method using forward and backward citation tables
Document searching method using forward and backward citation tables
