@article{TVP_1972_17_1_a0,
     author = {P. Masani},
     title = {On {Helixes} in {Hilbert} {Space.~I}},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {3--20},
     year = {1972},
     volume = {17},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TVP_1972_17_1_a0/}
}