A 4GHz Low-Power Folded-Cascode CMOS LC Quadrature VCO for RF Transceivers. - S. M. Rezaul Hasan; Nazmul Ula (ESA/VLSI, 2004)

A Novel Current Feed-back Sub-Nano-Siemen Transconductance Circuit Suitable for Large Time-Constant Bio-medical Applications. - S. M. Rezaul Hasan; Nazmul Ula (APCCAS, 2006)

Analog CMOS charge model for molecular redox electron-transfer reactions and bio-chemical pathways. - S. M. Rezaul Hasan; Nazmul Ula (ISCAS, 2008)