The characteristic direction: a geometrical approach to identify differentially expressed genes. - Neil R. Clark; Kevin S. Hu; Axel S. Feldmann; Yan Kou; Edward Y. Chen; Qiaonan Duan; Avi Ma'ayan (BMC Bioinform., 2014)

GEO2Enrichr: browser extension and server app to extract gene sets from GEO and analyze them for biological functions. - Gregory W. Gundersen; Matthew R. Jones; Andrew D. Rouillard; Yan Kou; Caroline D. Monteiro; Axel S. Feldmann; Kevin S. Hu; Avi Ma'ayan (Bioinform., 2015)

eXpression2Kinases (X2K) Web: linking expression signatures to upstream cell signaling networks. - Daniel J. B. Clarke; Maxim V. Kuleshov; Brian M. Schilder; Denis Torre; Mary E. Duffy; Alexandra B. Keenan; Alexander Lachmann; Axel S. Feldmann; Gregory W. Gundersen; Moshe C. Silverstein; Zichen Wang 002; Avi Ma'ayan (Nucleic Acids Res., 2018)