@article{Pequignot_2015,
    doi = {10.1007/s00153-015-0434-y},
    url = {https://doi.org/10.1007%2Fs00153-015-0434-y},
    year = {2015},
    month = {may},
    publisher = {Springer Science and Business Media {LLC}},
    volume = {54},
    number = {5-6},
    pages = {659--683},
    author = {Yann Pequignot},
    title = {A Wadge hierarchy for second countable spaces},
    journal = {Archive for Mathematical Logic}
}

@article{Pequignot_2015, doi = {10.1007/s00153-015-0434-y}, url = {https://doi.org/10.1007%2Fs00153-015-0434-y}, year = {2015}, month = {may}, publisher = {Springer Science and Business Media {LLC}}, volume = {54}, number = {5-6}, pages = {659--683}, author = {Yann Pequignot}, title = {A Wadge hierarchy for second countable spaces}, journal = {Archive for Mathematical Logic} }