Ganter, Bernhard.
Formal concept analysis: mathematical foundations : with 105 figures /
Bernhard Ganter, Rudolf Wille ; translated from the German by Cornelia Franzke 
. - Berlin : New York : Springer,  1999 
. - x, 284 p.  tab., schem.  23 cm. 
<br/>К.: Бібліогр. : с. 271-280, Покажчик 
<br/><label>  ISBN: </label>978-3-540-62771-5