@article{Lischke_1976,
    doi = {10.1002/malq.19760220150},
    url = {https://doi.org/10.1002%2Fmalq.19760220150},
    year = {1976},
    month = {jan},
    publisher = {Wiley},
    volume = {22},
    number = {1},
    pages = {413--418},
    author = {Gerhard Lischke},
    title = {Natürliche Kompliziertheitsmasze und Erhaltungssätze I},
    journal = {Mathematical Logic Quarterly}
}

@article{Lischke_1976, doi = {10.1002/malq.19760220150}, url = {https://doi.org/10.1002%2Fmalq.19760220150}, year = {1976}, month = {jan}, publisher = {Wiley}, volume = {22}, number = {1}, pages = {413--418}, author = {Gerhard Lischke}, title = {Natürliche Kompliziertheitsmasze und Erhaltungssätze I}, journal = {Mathematical Logic Quarterly} }