1.
Landjev I, Rousseva A. ON THE EXTENDABILITY OF GRIESMER ARCS. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 2013 Dec. 12 [cited 2024 Nov. 21];101:183-92. Available from: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/238