@article{Demange_2011,
    doi = {10.1088/1751-8113/45/2/025303},
    url = {https://doi.org/10.1088%2F1751-8113%2F45%2F2%2F025303},
    year = {2011},
    month = {dec},
    publisher = {{IOP} Publishing},
    volume = {45},
    number = {2},
    pages = {025303},
    author = {Gilles Demange and Eva-Maria Graefe},
    title = {Signatures of three coalescing eigenfunctions},
    journal = {Journal of Physics A: Mathematical and Theoretical}
}

@article{Demange_2011, doi = {10.1088/1751-8113/45/2/025303}, url = {https://doi.org/10.1088%2F1751-8113%2F45%2F2%2F025303}, year = {2011}, month = {dec}, publisher = {{IOP} Publishing}, volume = {45}, number = {2}, pages = {025303}, author = {Gilles Demange and Eva-Maria Graefe}, title = {Signatures of three coalescing eigenfunctions}, journal = {Journal of Physics A: Mathematical and Theoretical} }