@article{GDZPPN002309092,
title = {Absence of Positive Eigenvalues in a Class of Multiparticle Quantum Systems.},
journal = {Mathematische Annalen},
volume = {212},
year = {1974},
pages = {133-138},
zbl = {0253.35025},
url = {http://dml.mathdoc.fr/item/GDZPPN002309092}
}
Simon, Barry. Absence of Positive Eigenvalues in a Class of Multiparticle Quantum Systems.. Mathematische Annalen, Tome 212 (1974) pp. 133-138. http://gdmltest.u-ga.fr/item/GDZPPN002309092/