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1 Wexler, K, "Very early parameter setting and the unique checking constraint: A new explanation of the optional infinitive stage" 106 : 23-79, 1998
2 Guasti, M. T, "Verb syntax in Italian child grammar: Finite and non-finite verbs" 3 : 1-40, 1994
3 Gruber, J. S, "Topicalization in child language" 3 : 37-65, 1967
4 Rizzi, L, "The fine structure of the left periphery, In Elements of Grammar" Kluwer 281-337, 1997
5 MacWhinney, B, "The child language data exchange system" 12 : 271-296, 1985
6 Chomsky, N, "The Minimalist Program" MIT Press 1995
7 Radford, A, "Syntactic Theory and the Acquisition of English Syntax" Basil Blackwell 1990
8 Schütze, C, "Subject Case licensing and English root infinitives, In BUCLD 20: Proceedings of the 20th Annual Boston University Conference on Language Development" MIT Press 679-680, 1996
9 Rizzi, L, "Some notes on linguistic theory and language development: The case of root infinitives" 3 : 371-393, 1993
10 Haegeman, L, "Root infinitives, tense and truncated structures in Dutch" 4 : 205-255, 1995
11 Rispoli, M, "Pronoun case overextensions and paradigm building" 21 : 157-172, 1994
12 Wexler, K, "Optional infinitives, head movement and economy of derivation, In Verb Movement" Cambridge University Press 1994
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14 Bromberg, H. S, "Null subjects in Wh-questions, In Papers on Language Processing and Acquisition" MIT, MITWPL 1995
15 Chomsky, N, "Minimalist inquiries: The framework, In Step by Step" MIT Press 89-156, 2000
16 Chomsky, N, "Lectures on Government and Binding" Foris 1981
17 Guasti, M. T, "Language Acquisition: The Growth of Grammar" MIT Press 2004
18 Salustri, M, "Is there an analogue to the RI stage in the null subject languages, In BUCLD" Cascadilla Press 692-703, 2003
19 Chomsky, N, "Derivation by phase, In Ken Hale: A Life in Language" MIT Press 1-52, 2001
20 Chomsky, N, "Beyond explanatory adequacy, In Structures and Beyond: The Cartography of Syntactic Structures" Oxford University Press 104-131, 2004
21 Chomsky, N, "Aspects of the Theory of Syntax" MIT Press 1965
22 Radford, A, "An Introduction to English Sentence Structure" Cambridge University Press 2009
23 Chomsky, N, "A minimalist program for linguistic theory, In The View from Building 20: Essays in Linguistics in Honor of Sylvain Bromberger" MIT Press 1-52, 1993