@article{Maron:2009,
author
=
"N.Maron",
title
=
"Determinations of N/C and C12/C13 ratios in the atmospheres of carbon stars",
journal
=
"Acta Astronomica",
volume
=
"Vol 29",
number
=
"no 1",
pages
=
"115--133",
year
=
"1979",
}