@article{RSMUP_2003__110__269_0, author = {Diagana, Toka}, title = {Algebraic sum of unbounded normal operators and the square root problem of Kato}, journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova}, volume = {110}, year = {2003}, pages = {269-275}, mrnumber = {2033011}, zbl = {1121.47015}, language = {en}, url = {http://dml.mathdoc.fr/item/RSMUP_2003__110__269_0} }
Diagana, Toka. Algebraic sum of unbounded normal operators and the square root problem of Kato. Rendiconti del Seminario Matematico della Università di Padova, Tome 110 (2003) pp. 269-275. http://gdmltest.u-ga.fr/item/RSMUP_2003__110__269_0/
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