@article{JFAA_1995__2_2_59487,
     author = {P.K. Ratnakumar and S. Thangavelu},
     title = {Analogues of {Besicovitch-Wiener} {Theorem} for {Heisenberg} {Group.}},
     journal = {The journal of Fourier analysis and applications},
     pages = {407--414},
     year = {1995},
     volume = {2},
     number = {2},
     zbl = {0901.43003},
     url = {http://geodesic.mathdoc.fr/item/JFAA_1995__2_2_59487/}
}