"The Case Particle Ni and Its Aquisition" in: Patrick Heinrich & Yuko Sugita (eds.): Japanese as Foreign Language in the Age of Globalization. München: Iudicium (2008): 207-225.

"L2 Choices as Evidence of Cognitive Processes" in Linguistics of Choice: A Unified Approach to the Study of Language in Society: (in preparation)

"Japanese Language Instruction and the Question of Correctness", in International Journal of the Sociology of Language 175/176, (2005): 271-284.

Goebel Noguchi, Mary and Fotos, Sandra (eds.). (2001). Studies in Japanese Bilingualism. Clevedon: Multilingual Matters. In: International Journal of the Sociology of Language 152, (2001): 179-184.

Nakamura, Karen. (2006). "Deaf in Japan: Signing and the Politics of Identity". New York: Cornell University Press. In: Language and Society No.12, (2010): 213-220.

(26.08.2008) The Prototype Theory and the Acquisition of 'ni', AILA, Essen, 25.08.-29.08.2008

(14.07.2008) 格助詞「に」の心理的プロトタイプとその習得 (The Psychological Prototypes of the Case Particle "Ni")International Conference on Japanese Language Education, Pusan University of Foreign Studies, Korea, 11.07.-14.07.2008.

(24.03.2006) “Cognitive processes in the acquisition of ni”, Conference on Foreign Language Learning in the Age of Globalization. Duisburg-Essen University.

(02.04.2004) "Japanese Language Instruction and the Question of Correctness", International Symposium on Changing Language Regimes in Globalizing Environments. Universität Duisburg-Essen.

(05.03.2011) "Ryukyuan particles from a cognitive linguistic perspective." 3rd Ryukyuan Heritage Language Symposium "Ryukyuan Language Endangerment: The Impact of Grammar Writing", Kwansai Gakuin University (Tokyo Satellite Campus), Tokyo, 04.03. - 05.03.2011