Yeung, AWK (Author) (Other); Georgieva, MG (Author) (Other); Kirilov, K (Author) (Other); Balacheva, AA (Author) (Other); Peeva, MI (Author) (Other); Horbanczuk, OK (Author) (Other); Horbanczuk, JO (Author) (Other); Lucarini, M (Author) (Other); Durazzo, A (Author) (Other); Santini, A (Author) (Other); Souto, EB (Author) (Other); Pajpanova, TI (Author) (Other); Milella, L (Author) (Other); Atanasov, AG (Author) (Other); Tzvetkov, NT (Author) (Other)
Chouiter, MI (Author) (Other); Boulebd, H (Author) (Other); David M Pereira (Author) (FFUP); Patricia Valentao (Author) (FFUP); Paula B Andrade (Author) (FFUP); Belfaitah, A (Author) (Other); Silva, AMS (Author) (Other)