@article{Kuhlmann_1997,
    doi = {10.1090/s0002-9939-97-03964-6},
    url = {https://doi.org/10.1090%2Fs0002-9939-97-03964-6},
    year = {1997},
    publisher = {American Mathematical Society ({AMS})},
    volume = {125},
    number = {11},
    pages = {3177--3183},
    author = {Franz-Viktor Kuhlmann and Salma Kuhlmann and Saharon Shelah},
    title = {Exponentiation in power series fields},
    journal = {Proceedings of the American Mathematical Society}
}

@article{Kuhlmann_1997, doi = {10.1090/s0002-9939-97-03964-6}, url = {https://doi.org/10.1090%2Fs0002-9939-97-03964-6}, year = {1997}, publisher = {American Mathematical Society ({AMS})}, volume = {125}, number = {11}, pages = {3177--3183}, author = {Franz-Viktor Kuhlmann and Salma Kuhlmann and Saharon Shelah}, title = {Exponentiation in power series fields}, journal = {Proceedings of the American Mathematical Society} }