BazHumhttp://www.bazhum.pl/bib/rss/Kwerenda na www.bazhum.plplFri, 01 Dec 2023 23:31:19 +0000Independent quantum systems and the associativity of the product of quantum observables http://www.bazhum.pl/bib/article/627141/Independent quantum systems and the associativity of the product of quantum observables http://www.bazhum.pl/bib/article/627141/