To cite ade4 in publications use one these references:

Dray, S. and Dufour, A.B. (2007): The ade4 package: implementing the duality diagram for ecologists. Journal of Statistical Software. 22(4): 1-20.

Chessel, D. and Dufour, A.B. and Thioulouse, J. (2004): The ade4 package-I- One-table methods. R News. 4: 5-10.

Dray, S. and Dufour, A.B. and Chessel, D. (2007): The ade4 package-II: Two-table and K-table methods. R News. 7(2): 47-52.

Corresponding BibTeX entries:

@Article{, title = {The ade4 package: implementing the duality diagram for ecologists}, author = {S. Dray and A.B. Dufour}, journal = {Journal of Statistical Software}, year = {2007}, volume = {22}, pages = {1-20}, number = {4}, }

@Article{, title = {The ade4 package-{I}- {O}ne-table methods}, author = {D. Chessel and A.B. Dufour and J. Thioulouse}, journal = {R News}, year = {2004}, volume = {4}, pages = {5-10}, }

@Article{, title = {The ade4 package-{II}: {T}wo-table and {K}-table methods.}, author = {S. Dray and A.B. Dufour and D. Chessel}, journal = {R News}, year = {2007}, volume = {7}, number = {2}, pages = {47-52}, }