@article{10_4171_dm_493,
     author = {Sam Payne and Dave Anderson},
     title = {Operational $K$-theory},
     journal = {Documenta mathematica},
     pages = {357--399},
     year = {2015},
     volume = {20},
     doi = {10.4171/dm/493},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/493/}
}