@article{Szumiński:2021,
author
=
"W.Szumiński and A.Maciejewski",
title
=
"Comment on "On the integrability of 2D Hamiltonian systems with variable Gaussian curvature" by A. A. Elmandouh",
journal
=
"Nonlinear Dynamics",
volume
=
"Vol. 104",
pages
=
"1443--1450",
year
=
"2021",
}