E. Sallaberry, Ene sinestea, 1972.

X. Artiagoitia, Hatsarreak eta Parametroak lantzen, 2000.

E. Bach, The Algebra of Events, Linguistics and Philosophy, vol.14, pp.5-16, 1986.
DOI : 10.1002/9780470758335.ch13

N. Chomsky, The Minimalist Program, 1995.
DOI : 10.7551/mitpress/9780262527347.001.0001

N. Chomsky, Minimalist inquiries, Essays in Minimalist Syntax in Honor of, 2000.

G. Cinque, Adverbs and Functional Heads. A crosslinguistic Perspective Oxford Studies in Comparative Syntax, 1999.

C. Davis and . Eta-beste, The Pragmatic value of evidentials, 2007.

P. Dendale and L. Tasmowski, Introduction: evidentiality and related notions, Journal of Pragmatics, vol.33, issue.3, pp.339-387, 2001.
DOI : 10.1016/S0378-2166(00)00005-9

F. De-haan, Evidentiality and epistemic modality: Setting Boundaries, Southwest Journal of Linguistics, vol.18, pp.83-102, 1999.

O. Ducrot, Le dire et le dit, 1984.

M. Duguine, A. Eta, and . Irurtzun, «Ohar batzuk nafar-lapurterazko galdera eta galdegai indartuez, 2008.

A. Elordieta, Verb Movement and Constituent permutation in Basque. Doktorego tesia, Leideneko Unibertsitatea. Leiden: LOT dissertation series, 2001.

G. Elordieta, Morphosyntavtic Feature Chains and Morphological Domains, 1997.

G. Elordieta, Segmental Phonology and Syntactic Structure, 2007.
DOI : 10.1093/oxfordhb/9780199247455.013.0006

. Reiss, (arg) The Oxford Handbook of Linguistic Interfaces, pp.125-178

;. R. Etxepare, J. Eta, . Ortiz, and . Urbina, « Focus and Wh-movement in Basque, 2003.

M. Faller, Semantics and Pragmatics of Evidentials in Cuzco Quechua, 2002.

R. Floyd, La Estructura categorical de los evidenciales en el quechua Wanka, 1997.

E. Garrett, Evidentiality and Assertion in Tibetan, 2000.

B. Haddican, Basque Functional Heads Linguistics in the Big Apple Working Papers in Linguistics, 2001.

B. Haddican, Sentence polarity and word order in Basque, The Linguistic Review, vol.21, issue.2, pp.87-124, 2004.
DOI : 10.1515/tlir.2004.004

B. Haddican, Euskal perpausaren Espez-Buru-Osagarri hurrenkeraren aldeko argudio batzuk " In X. Artiagoitia eta A. Elordieta (arg) Antisimetriaren Hipotesia vs, 2008.

J. Higginbotham, Evidentials: Some Preliminary Distinctions, 2003.
DOI : 10.1007/978-1-4020-8310-5_9

N. Hornstein, A Theory of Syntax. Minimal Operations and Universal Grammar, 2009.

G. Jendraschek, Les notions de la modalité en Basque. Doktorego tesia, 2003.

I. Laka, Negation in Syntax. On the Nature of Functional Categories and Projections, 1990.

M. Larramendi, El imposible vencido, 1729.

J. Marit, Syntactic Heads and Wiord Formation. Oxford Studies in Comparative Syntax, 2002.

L. Mathewson, H. Davis, and H. Rullmann, Evidentials as epistemic modals: Evidence from St'??t'imcets, Linguistic Variation Yearbook, vol.7, 2008.
DOI : 10.1075/livy.7.07mat

J. Ortiz-de-urbina, Parameters in the Grammar of Basque, 1989.

J. Ortiz-de-urbina, Verb-initial patterns in Basque and Breton, Lingua, vol.94, issue.2-3, pp.125-153, 1994.
DOI : 10.1016/0024-3841(94)90023-X

L. Rizzi, The Fine Structure of the Left Periphery (ed) Elements of Grammar, 1997.

M. Schenner, Semantics of Evidentials: German reportative modals " CONSOLE XVI-ko agirietan

M. Squartini, Disentangling evidentiality and epistemic modality in Romance, Lingua, vol.114, issue.7, pp.873-895, 2004.
DOI : 10.1016/S0024-3841(03)00064-0

J. Van-eys, Dictionnaire Basque-Français, 1873.

L. Vicente, The Syntax of Heads and Phrases. A Study of verb Phrase Fronting, 2007.

D. Unibertsitatea, Leiden:LOT dissertation series

V. Fintel and K. Gillies, Epistemic modality for dummies, 2006.

R. Zanuttini, Negation and Clausal Structure. A Comparative Study of Romance Languages, 1997.

K. Zuazo, Euskalkiak Gaur, Fontes Linguae Vasconum, vol.30, pp.191-233, 1998.

L. Zubeldia, Omen-ek esan nahi omen duenaz, Gogoa VII, vol.2, pp.237-269, 2008.