@misc{Tufail_Muhammad_The_2021,
 author={Tufail, Muhammad and Lee, Haebin and Moon, Yang Gyu and Kim, Hwang and Kim, Kwan Myung},
 type={artykuł},
 publisher={Projack},
 title={The Effect of Lumbar Erector Spinae Muscle Endurance Exercise on Perceived Low-back Pain in Older Adults},
 address={Częstochowa},
 year={2021},
 language={eng},
}