The paper of Szabolcs Számadó as a co-author with József Garay, Villő Csiszár, Tamás F. Móri, András Szilágyi and Zoltán Varga "Juvenile honest food soliciation and parental investment as a life history strategy" has been published by PLOS One (Impact Factor: 2.806)
Available here: https://doi.org/10.1371/journal.pone.0193420