@article{article,
title = {Economic importance of Pteridophytes},
author = {Vasudeva, S.M.},
year = {1999},
journal = {Indian Fern Journal},
volume = {16},
number = {1-2},
pages = {130-152},
howpublished = "\url{https://eurekamag.com/research/010/510/010510779.php}"
}