(ed.) (1974) : Deutsche Rechtschreibung mangelhaft?Heidelberg.
Binder-Scott, L.
(1982) : Developing Phonics Skills. New York.
Blanco, G.M.
(1978) : The Implementation of Bilingual/Bicultural Education Programs in the United Statesin : B.J. Spolsky and R.L. Cooper (Eds) Case Studies in Bilingual Education. Rowley, Mass.; 454–499.
(1974) : Some effects of bilingualism on cognitive functioningin S. Carey (Ed.) Bilingualism, bicultu-ralism and education. Proeedings from the conference of College Universitaire St. Jean, The University of Alberta.
(1968) : Foreign Languages and the Elementary School Child. Dubuque, Iowa.
Donoghue, M.R. and Kunkle, J.F.
(1979) : Second Languages in Primary Education. Rowley, Mass.
Fishman, J.A. , Riedler-Berger, C , Koilling, P. and Steele, J.M.
(1984) : The Acquisition of Biliteracy : A Comparative Ethnography of four ethnic community tongue schools in New York City. Chap. 12 of J.A. Fishman et al. (ed.) The Rise and Fall of the Ethnic Revival. Berlin, 377–442.
(1970) : Het onderwijs in moderne vreemde talen. Groningen.
Van Els, T. , Extra, G. , Van Os, C. , Bongaerts, T.
(1977) : Handboek voor de Toegepaste Taalkunde. Groningen.
Yelland, G.W. and Bradley, D.C.
(1981) : Effects of reading instruction methods on word recognition processes. Paper presented to the 3rd Australian Language of Speech Conference, University of Melbourne.