B 2007: formal specification and development in B [Electronic resource] : 7th international conference of B users, Besancon, France, January 17-19, 2007 : proceedings / eds. J. Julliand, O. Kouchnarenko. - Electronic text data. - Berlin ; Heidelberg : Springer, 2006. - (Lecture notes in computer science, ISSN 0302-9743 ; 4355). - ISBN 978-3-540-68761-0 : Б. ц.