A real-time microprocessor QRS detector system with a 1-ms timing accuracy for the measurement of ambulatory HRV. - Antti Ruha; Sami Sallinen; Seppo Nissilä (IEEE Trans. Biomed. Eng., 1997)

A structure for extending the linear input voltage range of a differential input stage. - Kimmo Lasanen; Jussi Tervaluoto; Antti Ruha; Juha Röning (ICECS, 1998)

Systems on Chips Design: System Manufacturer Point of View. - Veikko Loukusa; Helena Pohjonen; Antti Ruha; Tarmo Ruotsalainen; Olli Varkki (DATE, 2004)