00517naa#a2200169#i#450# EN\NORMA\bibl\45003 20260130055547.5 1605-6590 20210709b2021####ek#y0engy0150####ca RU Patent Trolling: Legal Qualification Issues (Part 2) Journal article Moscow Legal publishing house Norm 2021 0 с. Journal article local Право. Юридические науки. 34 Gadzhiyev Gadis naukaru.ru