%0 Journal Article
%A I. G. Galyautdinov
%A E. E. Lavrentyeva
%T Determination of the minimal polynomials of algebraic numbers of the form $\operatorname{tg}^2(\pi/n)$ by the Tschirnhausen transformation
%J Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki
%D 2015
%P 20-27
%V 157
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/UZKU_2015_157_2_a1/
%G ru
%F UZKU_2015_157_2_a1