B. N. Prasad, T. N. Pandey and Manoj Kumar Singh. Three Dimensional Conformally Flat Landsberg and Berwald Spaces. J. Int. Acad. Phys. Sci. [Internet]. 2009 Sep. 15 [cited 2024 May 5];13(3):299-30. Available from: https://www.iaps.org.in/journal/index.php/journaliaps/article/view/195