BĂLOI, Carla Silvia, et al. “RATIONALIZATION OF MEANS FOR DEVELOPING ABDOMINAL MUSCLE STRENGTH THROUGH THE SIT-UP TEST IN THE EDUCATIONAL PROCESS FOR STUDENTS AGED 6 TO 10 YEARS”. Studia Universitatis Babeş-Bolyai Educatio Artis Gymnasticae, vol. 70, no. 2, Dec. 2025, pp. 9-18, doi:10.24193/subbeag.70.sp.iss.2.30.