@article{10_4064_cm90_1_3,
     author = {E. K. Narayanan and S. Thangavelu},
     title = {Oscillating multipliers on {the
Heisenberg} group},
     journal = {Colloquium Mathematicum},
     pages = {37--50},
     publisher = {mathdoc},
     volume = {90},
     number = {1},
     year = {2001},
     doi = {10.4064/cm90-1-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm90-1-3/}
}