Comrie, Bernard: Aspect: An introduction to the study of verbal aspect and related problems, (1976). Cambridge Textbooks in Linguistics. Cambridge: Cambridge University Press. Pp. 1-65.
Leech, Geoffrey : Meaning and the English verb. 3rd ed, 2004. London: Longman.
Articles in compendium 'ENG4108 Tense and aspect in English' (available at Kopiutsalget, Akademika):
*Biber, Douglas, Stig Johansson, Geoffrey Leech, Susan Conrad and Edward Finegan (1999), Longman Grammar of Spoken and Written English. London: Longman. Pp. 451-475'
*Elsness, Johan (2000/2001), ’A contrastive look at the present perfect/preterite opposition in English and Norwegian’, Languages in Contrast 3/1: 3-40
*Elsness, Johan (forthcoming a), ‘The present perfect and the preterite’, to appear in Günter Rohdenburg and Julia Schlüter (eds.), One language, two grammars? Grammatical differences between British and American English. Cambridge: Cambridge University Press
*Elsness, Johan (forthcoming b), ‘The present perfect and the preterite in Australian and New Zealand English’, to appear in Peter Collins, Pam Peters and Adam Smith (eds.), Comparative Grammatical Studies in Australian and New Zealand English. Amsterdam/Philadelphia: John Benjamins
*Engel, Dulcie M. and Marie-Eve Ritz (2000), ‘The use of the present perfect in Australian English’, Australian Journal of Linguistics 20/2: 119-140
*Hundt, Marianne (2004), ‘Animacy, agentivity, and the spread of the progressive in Modern English’, English Language and Linguistics 8/1: 47-69
*Inoue, Kyoko (1979), ‘An analysis of the English present perfect’, -Linguistics- 17: 561-589
*Mair, Christian (1997), ‘The spread of the going-to-future in written English: A corpus-based investigation into language change in progress’, in Raymond Hickey and Stanisław Puppel (eds.), Language History and Linguistic Modelling: A Festschrift for Jacek Fisiak on his 60th Birthday, vol. II. Berlin and New York: Mouton de Gruyter. Pp. 1537 1543
*Mair, Christian and Marianne Hundt (1995), ‘Why is the progressive becoming more frequent in English? A corpus-based investigation of language change in progress’. Zeitschrift für Anglistik und Amerikanistik 43: 111-122
*Rastall, Paul (1999), ‘Observations on the present perfect in English’, World Englishes 18/1: 79-83
*Smith, Nicholas (2002), ’Ever moving on? The progressive in recent British English’, in Pam Peters, Peter Collins and Adam Smith (eds.), New Frontiers of Corpus Research: Papers from the Twenty First International Conference on English Language Research on Computerized Corpora, Sydney 2000. Amsterdam and New York: Rodopi. Pp. 317 330