@article{MM2_1983__44_154969,
     author = {Nancy Rallis},
     title = {A {Fixed} {Point} {Index} {Theory} for {Symmetric} {Product} {Mappings.}},
     journal = {Manuscripta mathematica},
     pages = {279--308},
     publisher = {mathdoc},
     volume = {44},
     year = {1983},
     zbl = {0525.55001},
     url = {http://geodesic.mathdoc.fr/item/MM2_1983__44_154969/}
}