@article{Freyd_1993,
    doi = {10.1016/0022-4049(93)90088-b},
    url = {https://doi.org/10.1016%2F0022-4049%2893%2990088-b},
    year = {1993},
    month = {oct},
    publisher = {Elsevier {BV}},
    volume = {89},
    number = {1-2},
    pages = {93--106},
    author = {Peter Freyd and Alex Heller},
    title = {Splitting homotopy idempotents {II}},
    journal = {Journal of Pure and Applied Algebra}
}

@article{Freyd_1993, doi = {10.1016/0022-4049(93)90088-b}, url = {https://doi.org/10.1016%2F0022-4049%2893%2990088-b}, year = {1993}, month = {oct}, publisher = {Elsevier {BV}}, volume = {89}, number = {1-2}, pages = {93--106}, author = {Peter Freyd and Alex Heller}, title = {Splitting homotopy idempotents {II}}, journal = {Journal of Pure and Applied Algebra} }