Bedratyuk, L. P. (2011). Poincare series of the multigraded algebras of <i>SL </i><sub>2</sub&gt;-invariants. Ukrains’kyi Matematychnyi Zhurnal, 63(6), 755-763. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/2760