@article{GDZPPN00234744X,
title = {On the Solution of the Commutation Relation PQ - QP = -iI.},
journal = {Mathematica Scandinavica},
volume = {13},
year = {1963},
pages = {129-139},
zbl = {0135.36404},
url = {http://dml.mathdoc.fr/item/GDZPPN00234744X}
}
Mejlbo, Lars C. On the Solution of the Commutation Relation PQ - QP = -iI.. Mathematica Scandinavica, Tome 13 (1963) pp. 129-139. http://gdmltest.u-ga.fr/item/GDZPPN00234744X/