@article{10_21136_CMJ_1967_100773,
     author = {Kluv\'anek, Igor and Kov\'a\v{r}{\'\i}kov\'a, Marta},
     title = {Product of spectral measures},
     journal = {Czechoslovak Mathematical Journal},
     pages = {248--256},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1967},
     doi = {10.21136/CMJ.1967.100773},
     mrnumber = {0212598},
     zbl = {0159.19603},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100773/}
}