@misc
{TN_libero_mab2,
author = {
Grahne, Gösta
AND
Spyratos, Nicolas
AND
Stamate, Daniel
},
title = {
Lecture Notes in Computer Science: Semantics and containment of queries with internal and external conjunctions
},
publisher = {Springer Berlin Heidelberg},
isbn = {0302-9743},
isbn = {1611-3349},
year = {1997},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}