@article{Jardin:2019,
author
=
"A.Jardin and P.Lubiński",
title
=
"Spectral states of NGC 4151 observed with INTEGRAL",
journal
=
"Memorie Della Societa Astronomica Italiana",
volume
=
"Vol. 90",
pages
=
"200--203",
year
=
"2019",
}