@article{MOMA_1988__106_1_178386,
     author = {H. Groemer},
     title = {On the {Volume} of {Equichordal} {Sets.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {1--8},
     publisher = {mathdoc},
     volume = {106},
     number = {1},
     year = {1988},
     zbl = {0653.52002},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1988__106_1_178386/}
}