Stepien, A., Maksymiuk, G., Skrzynski, S., Chmielowski, K., Kwasucki, J., Twarkowski, P., . . . Jernajczyk, W. (1999). Roles of SPECT-HMPAO, MRI, and EEG in the diagnosis of late sequelae of a minor head trauma. Biology of sport, 16(2), S. 97-103.

Stepien, A., G. Maksymiuk, S. Skrzynski, K. Chmielowski, J. Kwasucki, P. Twarkowski, J. Pietrzykowski, and W. Jernajczyk. "Roles of SPECT-HMPAO, MRI, and EEG in the Diagnosis of Late Sequelae of a Minor Head Trauma." Biology of Sport 16, no. 2 (1999): S. 97-103.

Stepien, A., et al. "Roles of SPECT-HMPAO, MRI, and EEG in the Diagnosis of Late Sequelae of a Minor Head Trauma." Biology of Sport 16.2 (1999): S. 97-103.