@article{10_4007_annals_2017_186_2_6,
     author = {Mark E. Walker},
     title = {Total {Betti} numbers of modules of finite projective dimension},
     journal = {Annals of mathematics},
     pages = {641--646},
     publisher = {mathdoc},
     volume = {186},
     number = {2},
     year = {2017},
     doi = {10.4007/annals.2017.186.2.6},
     mrnumber = {3702675},
     zbl = {06774115},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2017.186.2.6/}
}