Design, analysis and implementation of electronic test for knowledge evaluation in the course of Information Technologies for pharmaceutical students. - Hristo Manev; Mancho Manev (CoRR, 2017)

Redesign of web-based exam for knowledge evaluation in Advanced Mathematics for pharmaceutical students based on analysis of the results. - Hristo Manev; Gergana Maneva (CoRR, 2020)

Para-Ricci-like Solitons with Vertical Potential on Para-Sasaki-like Riemannian Π-Manifolds. - Hristo Manev (Symmetry, 2021)

Second Natural Connection on Riemannian Π-Manifolds. - Hristo Manev (Symmetry, 2023)