@article{Mann_2016,
    doi = {10.1080/10586458.2015.1096867},
    url = {https://doi.org/10.1080%2F10586458.2015.1096867},
    year = {2016},
    month = {feb},
    publisher = {Informa {UK} Limited},
    volume = {25},
    number = {3},
    pages = {281--294},
    author = {Casey Mann and B. Charles Thomas},
    title = {Heesch Numbers of Edge-Marked Polyforms},
    journal = {Experimental Mathematics}
}

@article{Mann_2016, doi = {10.1080/10586458.2015.1096867}, url = {https://doi.org/10.1080%2F10586458.2015.1096867}, year = {2016}, month = {feb}, publisher = {Informa {UK} Limited}, volume = {25}, number = {3}, pages = {281--294}, author = {Casey Mann and B. Charles Thomas}, title = {Heesch Numbers of Edge-Marked Polyforms}, journal = {Experimental Mathematics} }