Chobanov G, Chobanov I. LAGRANGE OR EULER? PARTH THREE: THE FUTURE. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 1991 Dec. 12 [cited 2024 Nov. 22];82(2):63-109. Available from: https://annual.uni-sofia.bg/index.php/fmi/article/view/538