A multilayer approach to multiplexity and link prediction in online geo-social networksDesislava Hristova, Anastasios Noulas, Chloë Brown, Mirco Musolesi and Cecilia MascoloEPJ Data Sci., 5 1 (2016) 24DOI: https://doi.org/10.1140/epjds/s13688-016-0087-z