@article{SF_1970__1_133785,
     author = {P.A. Grillet},
     title = {Interpolation properties and tensor product of semigroups.},
     journal = {Semigroup forum},
     pages = {162--168},
     publisher = {mathdoc},
     volume = {1},
     year = {1970},
     zbl = {0211.33701},
     url = {http://geodesic.mathdoc.fr/item/SF_1970__1_133785/}
}