let doi2bib = doi2bib::Doi2Bib::new().unwrap();
let bibtex = doi2bib.resolve_doi("10.1109/5.771073").await.unwrap();
println!("{}", bibtex);
// @article{Paskin_1999, 
//     title={Toward unique identifiers},
//     volume={87},
//     ISSN={0018-9219}, 
//     url={http://dx.doi.org/10.1109/5.771073},
//     DOI={10.1109/5.771073},
//     number={7},
//     journal={Proceedings of the IEEE},
//     publisher={Institute of Electrical and Electronics Engineers (IEEE)},
//     author={Paskin, N.},
//     year={1999},
//     month=jul,
//     pages={1208–1227}
// }