How do I cite Gabmap?

John Nerbonne, Rinke Colen, Charlotte Gooskens, Peter Kleiweg, and Therese Leinonen (2011). Gabmap — A Web Application for Dialectology. Dialectologia Special Issue II.

and/or

Therese Leinonen, Çağrı Çöltekin and John Nerbonne (2016) Using Gabmap. Lingua, 178:71–83