The legal deposit copy, obliging each recipient to provide its eternal preservation, has always guaranteed the completeness of joint library resources, formed by native libraries. In course of time, a new approach proved itself: if it were undesirable and, moreover, impossible in the conditions of stack crisis to preserve constantly everything published, the depository libraries should be given the right to choose materials having permanent information, cultural and historical value. It determined the necessity of partnership between libraries of different types and kinds, coordination in document resources formation, other activities aspects. However, a number of legal juristic acts and financial documents, adopted in the previous decade, changed the paradigm of interrelations between institutions of different financial forms. Profiling their resources, libraries of higher educational institutions consciously limit subjects and types of editions as well as depth of their retrospection with due regard for possibilities of satisfying their users’ wide information needs by the stocks of other – basicly large universal scientific – libraries. For all that, practice of stocks formation even in SPSTL SB RAS indicates of the short supply – because of small circulation of this literature, lack of proper information and non- receipt of legal copies, etc. – of scientific editions of this segment. Statistic data formed on the base of a number of Novosibirsk State Universities publishing repertory as well the results of the analysis of this segment of SPSTL SB RAS stocks could serve as an obvious case. We suppose that it is necessary to cumulate statistical data on other basic universities of the Siberian Federal Region (SFR). That will permit, from our viewpoint, not only to determine with a high degree of certainty modern completeness and guality of SPSTL SB RAS’ stock formation as the receiver of the legal deposit copy, but also to formulate perspectives of interaction between all the actors of the territorial scientific-aducational complex.