“Derivatives With Respect to Lifts of the Riemannian Metric of the FormatfG˜ =Sgf +H G on TM Over a Riemannian Manifold (M, g)”. 2025. Punjab University Journal of Mathematics 51 (1): 1-8. https://pujm.pu.edu.pk/index.php/pujm/article/view/398.