00562naa#a2200169#i#450# EN\INFRA-M\bibl\4177 20241126214518.2 2587-9111 20141217b2014####ek#y0engy0150####ca RUS RU Advantages and Disadvantages of Contemporary Methods for Evaluation of Efficiency of Investment in Intellectual Property Items Journal article Moscow INFRA-M Academic Publishing LLC. 2014 7 с. Journal article local Levkina Nataliya Nikolaevna naukaru.ru