@article{10_4064_fm216_3_1,
     author = {Stanis{\l}aw Betley},
     title = {Multiplicative maps from $H\mathbb Z$ to a ring
spectrum $R${\textemdash}a naive version},
     journal = {Fundamenta Mathematicae},
     pages = {193--205},
     publisher = {mathdoc},
     volume = {216},
     number = {3},
     year = {2012},
     doi = {10.4064/fm216-3-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm216-3-1/}
}