of M.Goyal's and E.Lee's paper.

by P.Chaudhuri.

of N.Gehani's paper.

of R.Larson's paper.

of S.Bandyopadhyay's papers.

of I.Spadafora's, F.Federigi's and F.Bazzichi's paper.

of K.Ishida's, M.Ochiai's, H.Yamamoto's and Y.Fukuda's paper.

of G.Terrine's paper.

of U.Kenichi's, J.Sugano's and N.Katsuhiko's paper.

of H. Kanoui's and M. van Caneghem's paper.

of O.Bandman's, S.Piskunov's and S.Sergeev's paper.

of I.Takeuchi's and N.Ohsato's paper.

of A.Celentano's, C.Ghezzi's and F.Lisuori's paper.

of M.Nagata's, T.Akiyama's and Y.Fujikake's paper.

of Mihoko Okada's and Masahiko Okada's paper.

of B.Meyer's paper.

of J.Diaz-Herrera's and R.Flude's paper.

of H.Kameda's paper.

of Y.Matsumoto's, O.Sasaki's, S.Nakajima's, K.Takezawa's, S.Yamamoto's and T.Tanaka's paper.

of M.Machura's paper.