@article{article1b1bb97e,
title   = {Symplectic singularity of curves with semigroups (4, 5, 6, 7), (4, 5, 6) and (4, 5, 7)},
author = {Lira, Fausto Assunção de Brito and Domitrz, Wojciech and Wik Atique, Roberta},
year = {2019},
doi = {10.1007/s00574-018-0102-z},
journal   = {Bulletin of the Brazilian Mathematical Society : New Series}
}