1.
Bujukliev N. An index formula in a class of groupoid $C^*$-algebras. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 2021 Dec. 12 [cited 2024 Dec. 4];108:23-8. Available from: https://ftl5.uni-sofia.bg/index.php/fmi/article/view/551