Koffi Enakoutsa, Yanni L Bills
N A Fellows, J Harding
Ling Zhong
Z. Śloderbach, J. Pajak
Sanda Cleja-Ţigoiu, Raisa Paşcan
Norman M. Wereley
David J Steigmann, Milad Shirani, Mohammadjavad J Sigaroudi
Zdzisław Śloderbach, Janusz Pajak
T. G. Langdon
R. L. Hewitt, W. Wallace, M. C. de Malherbe
, Yanni L Bills
