William N. Hannah and Jason F. Okulicz
Editorial
Sergey P. Babailov* and P. A. Stabnikov
Comunicação curta
Bassam H Mahboub, FatehRahman SMA Shendi, Basil Kh Safarini, Mostafa H AbdulAziz, Gamal M Mustafa and Vijayshree Prakash
Artigo de Pesquisa