@article{GDZPPN002421720,
title = {On Lattice Isomorphisms with Positive Real Spectrum and Groups of Positive Operators.},
journal = {Mathematische Zeitschrift},
volume = {162},
year = {1978},
pages = {115-124},
zbl = {0377.47026},
url = {http://dml.mathdoc.fr/item/GDZPPN002421720}
}
Arendt, W.; Schaefer, H.H.; Wolff, M. On Lattice Isomorphisms with Positive Real Spectrum and Groups of Positive Operators.. Mathematische Zeitschrift, Tome 162 (1978) pp. 115-124. http://gdmltest.u-ga.fr/item/GDZPPN002421720/