Aleš Bi ? an, Masaryk University, Czech Republic and Institute of the Czech Language, Academy of Sciences of the Czech Republic, specialises on phonetics, phonology and etymology. He has published articles in La Linguistique and Zeitschrift für Slawistik. Paul Rastall, formerly Principal Lecturer at Portsmouth University (UK) and Visiting Fellow at City University of Hong Kong, and author of seven books with numerous articles in specialist journals and main research interests in functionalist theory, epistemology, and English.
He has taught in UK, Sudan, Japan, Hong Kong, and China.