@article{article,
title = {Cytogenetic investigations on synthetic Galeopsis tetrahit},
author = {Mtintzing, A.},
year = {1931},
journal = {Hereditas},
volume = {16},
number = {1/2},
pages = {105-154},
howpublished = "\url{https://eurekamag.com/research/024/431/024431133.php}"
}