An energy efficient wearable tissue monitorAnnus, A.; Kuusik, Alar; Land, Raul; Haldre, Eero; Min, Mart; Parve, Toomas; Poola, Gustav13th International Conference on Electrical Bioimpedance and 8th Conference on Electrical Impedance Tomography 2007 : ICEBI2007 : August 29th - September 2nd 2007, Graz, Austria2007 / p. 240-243 https://link.springer.com/chapter/10.1007/978-3-540-73841-1_64 Improvement of switching lock-in signal conversion in bioimpedance analysersParve, Toomas; Land, Raul; Min, Mart; Poola, GustavBEC 2004 : proceedings of the 9th Biennial Baltic Electronics Conference : October 3-6, 2004, Tallinn, Estonia2004 / p. 179-182 : ill Measurement of intracardiac bioimpedance in rate adaptive pacemakersKuusik, Alar; Land, Raul; Min, Mart; Parve, Toomas; Poola, GustavProceedings of the 31. International Congress on Electrocardiology : June 27-July 1, 2004, Kyoto, Japan2004 / [4] p Measurement of intracardiac bioimpedance in rate adaptive pacemakersKuusik, Alar; Land, Raul; Min, Mart; Parve, Toomas; Poola, GustavProceedings of the 31st International Congress of Electrocardiology "Advances in Electrocardiology 2004" : 27 June - 1 July, 2004, Singapore2005 / p. 738-742 Methods of multi-frequency bioimpedance measurement in implantable and wearable devicesMin, Mart; Parve, Toomas; Poola, GustavProceedings of the 3rd European Medical & Biological Engineering Conference EMBEC'05 : November 20-25, 2005, Prague, Czech Republic2005 / [4] p