The complementarity between calls and messages in mobile telephony
| Year of publication: |
2008
|
|---|---|
| Authors: | Grzybowski, Lukasz ; Pereira, Pedro |
| Published in: |
Information Economics and Policy. - Elsevier, ISSN 0167-6245. - Vol. 20.2008, 3, p. 279-287
|
| Publisher: |
Elsevier |