@article{Gil:2009,
author
=
"J.Gil and D.Khechinashvili and G.Melikidze",
title
=
"On the optical pulsations from the Geminga pulsar",
journal
=
"Astrophysical Journal",
number
=
"no 551",
pages
=
"867--873",
year
=
"2001",
}