Summary:

Ackerman, Farrell 1981 Bechhofer, Robin 1976 Bolinger, Dwight 1978 Browne, E. Wayles 1972 Camacho, Jose2003
Comorovski, Ileana 1996 Giannakidou, Anastasia 1998 Gribanova, Vera2006 Gribanova, Vera2006 Grimshaw, Jane 1978
Grosu, Alexander 1985 Hiz, Henry 1978 Kazenin, Konstantin I.2002 Lipták, Anikó2003 Lipták, Anikó2001
Meyer, Roland2003 Skrabalova, Hana2006 Stepanovic', Sandra2003 Wachowicz, Krystyna A. 1974 Whitman, Neal2005
Whitman, Neal2002 Whitman, Neal2004 Zhang, Niina Ning Zhang, Niina Ning2004

References:

Ackerman, Farrell. 1981. On Questionable Complementizers. Acta Linguisticae Academiae Scientarum Hungaricae, 31. 19-56.

Bechhofer, Robin. 1976. Reduction in conjoined wh-questions. vol. 2, ed. by Jorge Hankamer, and Judith Aissen. 68-120. Harvard Studies in Syntax and Semantics. Cambridge, MA.

Bolinger, Dwight. 1978. Asking More Than One Thing at a Time. Questions, ed. by Henry Hiz. 97-106. Synthese Language Library. Dordrecht: Reidel.

Browne, E. Wayles. 1972. Conjoined Question Words and a Limitation on English Surface Structures. Linguistic Inquiry, 3. 222-26.

Camacho, Jose. 2003. The Structure of Coordination: Conjunction and Agreement Phenomena in Spanish and Other Languages. Dordrecht: Kluwer Academic Publishers.

Comorovski, Ileana. 1996. Interrogative Phrases and the Syntax-Semantics Interface. vol. 59. Studies in Linguistics and Philosophy. Boston: Kluwer.

Giannakidou, Anastasia and Merchant, Jason. 1998. Reverse Sluicing in English and Greek. The Linguistic Review, 15. 233-56.

Gribanova, Vera. 2006. A Different Kind of Multiple Wh: The Structure and Interpretation of Coordinated Multiple Wh-Questions. 1-33.

—2006. Structural Adjacency and the Typology of Interrogative Interpretations. 1-28.

Grimshaw, Jane. 1978. On the Syntax of Conjoined Wh Words in English. University of Massachusetts Occasional Papers on Linguistics, 3. 1-10.

Grosu, Alexander. 1985. Subcategorization and Parallelism. Theoretical Linguistics, 12. 231-40.

Hiz, Henry (ed.) 1978. Questions. vol. 1. Synthese Language Library. Boston: Reidel.

Kazenin, Konstantin I. (ed.) 2002. On Coordination of WH-Phrases in Russian. Tuebingen.

Lipták, Anikó. 2001. On the Syntax of Wh-Items in Hungarian, Leiden University.

—2003. Conjoined Questions in Hungarian. Multiple-Wh Fronting, ed. by Cedric Boeckx and Kleanthes Grohmann. 141-60. Linguistik Aktuell/Linguistics Today. Philadelphia: Benjamins.

Meyer, Roland. 2003. On Multiple Wh-Fronting and Wh-Clustering in Czech. Paper presented at Formal Approaches to Slavic Linguistics, Ann Arbor, Michigan.

Skrabalova, Hana. 2006. Multiple and Conjoined Wh-Words in Czech. Paper presented at Formal Approaches to Slavic Linguistics, Toronto.

Stepanovic', Sandra. 2003. Multiple Wh-Fronting in Serbo-Croatian Matrix Questions and the Matrix Sluicing Construction. Multiple-Wh Fronting, ed. by Cedric Boeckx. 255-84. Philadelphia: John Benjamins Publishing.

Wachowicz, Krystyna A. 1974. Against the Universality of a Single Wh-Question Movement. Foundations of Language, 11. 155-66.

Whitman, Neal. 2002. What and How We Can Learn from Mixed-Wh Interrogatives. Paper presented at Chicago Linguistic Society, University of Chicago.

—2005. Category Neutrality: A Type-Logical Investigation. Outstanding Dissertations in Linguistics: Routledge.

—2004. Semantics and Pragmatics of English Verbal Dependent Coordination. Language, 80. 403-34.

Zhang, Niina Ning. . The Syntactic Derivations of Two Paired Dependency Construcions. Lingua.

—2004. The Minimal Syntax of Coordination, National Chung Cheng University.