Ergonomic evaluation of workload by milk production: a bibliometric analysis - Oliveira, Claudilaine Caldas de; Moro, Antonio Renato Pereira; Ulbricht, Leandra; Bellinello, Marjorie Maria; Souza, Gilberto Francisco Martha de; Gabriel, Michele; Zattar, Izabel Cristina (Annals of Agricultural and Environmental Medicine, 2017)