, The Celtic Englishes, heidelberg, winter, pp.86-89, 1997.

A. G. Welsh, Language in the British Isles, p. trudgill (dir.), cambridge, pp.259-256, 1984.

J. Ball-martin and J. Fife, The Celtic Language, 1993.

«. Bellin-wynford, . Welsh, . English-in, and . Wales, Language in the British Isles, cambridge, pp.449-477, 1984.

D. Borsley-robert and . Roberts-ian, The Syntax of the Celtic Languages: A Comparative Perspective, cambridge, 1988.

E. David, South Wales Miners: A History of the South Wales Mining Valleys 1840-1980, llandysul, 1987.

F. Markku, . Klemola-juhani, and H. Pitkänen, gAchElIN Jean-Marc, « the progressive and habitual Aspects in Non-Standard Englishes », dans E. Schneider (dir.), vol.1, pp.33-46, 1997.

S. Hopkins-kenneth, . Rhondda-valley, and F. History, IhAlAINEN ossi, « on grammatical diffusion in Somerset Folk Speech », dans p. trudgill, J. k. chambers (dir.), Dialects of English: Studies in Grammatical Variation, london, longman, pp.290-302, 1975.

, The Welsh Language: Studies in its Syntax and Semantics, cardiff, University of wales press for the Schools council, 1977. klEMolA Juhani, kYtö Merja, rISSANEN Matti (dir.), Speech Past and Present: Studies in Dialectology in memory of Ossi Ihalainen, Frankfurt am Main, peter lang, 1996. klEMolA J., « periphrastic do in South-western dialects of British English: a reassessment, JoNES Ieuan g., « language and community in Nineteenth century wales, pp.33-51, 1974.

C. Le-corre-gaëlle, étude de la copule be et de la forme be + -ing, 1974.

, « A grammar and glossary of conservative Anglo-welsh dialects of rural wales, Anglo-welsh dialects in South East wales patterns in the Folk Speech of the British Isles », dans M. F. wakelin (dir.), Patterns in the Folk Speech of the British Isles, london, pp.28-46, 1972.

.. J. Penhallurick-r, D. J. Dialect-;-penhallurick-r, and . Welsh-english, A Handbook of Varieties of English, Rhondda Past and Future, vol.1, 1974.

.. J. Visser-gerard and . Celtic, , pp.276-293, 1955.

F. Wakelin-martin, The South West of England, Pattern in the Folk speech of the British Isles, london, the Athlone press of the University of london, 1972. wAkElIN M. F, 1986.

;. Wright-joseph and J. Wright, The English Dialect Grammar, oxford, coal Mining language: A recent Investigation », dans M. F. wakelin (dir.), Patterns in the Folk Speech of the British Isles, pp.32-49, 1905.