Krakovetckaia I.V., Zenkova Zh.N. «Nonparametric Turnbull estimator for intervalcensored data in the marketingresearch of the demand of bio-energy drinks» // 2013. № 3(24) C.64-69
Akopova Yelena S., Vanushkina Vera V. «Brand as a component of universitys informational contour» // 2011. №352 C.143-145
