TY  - JOUR
A1  - Montag, C.
A1  - Błaszkiewicz, K.
A1  - Sariyska, R.
A1  - Lachmann, B.
A1  - Andone, I.
A1  - Trendafilov, B.
A1  - Eibes, M.
A1  - Markowetz, A.
T1  - Smartphone usage in the 21st century: Who is active on WhatsApp?
Y1  - 2015
DO  - 10.1186/s13104-015-1280-z
JF  - BMC Research Notes 
VL  - 8
IS  - 1

ER  -