Petkov A. A LICHNEROWICZ-TYPE RESULT ON A SEVEN-DIMENSIONAL QUATERNIONIC CONTACT MANIFOLD. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 2013 Dec. 12 [cited 2024 Nov. 21];101:193-21. Available from: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/239