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Quantum Studies: Mathematics and Foundations > 2017 > 4 > 4 > 295-299
Theoretical and Mathematical Physics > 2016 > 187 > 1 > 479-496
Mathematical Notes > 2015 > 97 > 1-2 > 42-49
Functional Analysis and Its Applications > 2014 > 48 > 3 > 198-207
Journal de mathematiques pures et appliquees > 2006 > 86 > 6 > 463-470