Lack of conservation effort rapidly increases African great ape extinction risk (2012)

Tranquilli, S., Abedi-Lartey, M., Amsini, F., Arranz, L., Asamoah, A., Babaferni, O., Barakabuye, N., Campbell, G., Chancellor, R., Davenport, T. R. B., Dunn, A., Dupain, J., Ellis, C., Etoga, G., Furuichi, T., Gatti, S., Ghiurghi, A., Greengrass, E., Hashimoto, C., Hart, J., Herbinger, I., Hicks, T. C., Holbech, L. H., Huijbregts, B., Imong, I., Kumpel, N., Maisels,  F.,Marshall,  P.,  Nixon,  S.,  Normand,  E.,  Nziguyimpa,  L.,  Nzooh-Dogmo,  Z.,  Tiku  Okon,  D., Plumptre, A., Rundus, A., Sunderland-Groves, J., Todd, A., Warren, Y., Mundry, R., Boesch, C.  & Kuehi, H.  2012. Lack of conservation effort rapidly increases African great ape extinction risk. Conservation Letters. 5 (1), 48-55.