@inproceedings{DBLP:conf/nf2/GutingZ87,
author = {Ralf Hartmut G{\"u}ting and
Roberto Zicari},
title = {An Introduction to the Nested Sequences of Tuples Data Model
and Algebra},
booktitle = {NF$^2$},
year = {1987},
pages = {153-175},
ee = {http://dx.doi.org/10.1007/3-540-51171-7_25},
crossref = {DBLP:conf/nf2/87},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
@proceedings{DBLP:conf/nf2/87,
editor = {Serge Abiteboul and
Patrick C. Fischer and
Hans-J{\"o}rg Schek},
title = {Nested Relations and Complex Objects, Papers from the Workshop
"Theory and Applications of Nested Relations and Complex
Objects", Darmstadt, Germany, April 6-8, 1987},
booktitle = {NF$^2$},
publisher = {Springer},
series = {Lecture Notes in Computer Science},
volume = {361},
year = {1989},
isbn = {3-540-51171-7},
bibsource = {DBLP, http://dblp.uni-trier.de}
}