The SGoF+ software package has not been published as a program note. If you use it in a publication please cite our 2011 PLoS ONE paper which refers to the most recent and complete version of the program: 
Carvajal-Rodriguez A, de Uña-Alvarez J (2011) 
Additionally, for the different implemented methods you should cite any specific one you used (authored or not by us). To cite any of our authored methods please refer to the papers below: 
To know more about statistical properties of SGoF-based methods please check: de Uña-Alvarez J (2011) "On the Statistical Properties of SGoF Multitesting Method," Statistical Applications in Genetics and Molecular Biology: Vol. 10: Iss. 1, Article 18. [Journal Link]