Qureshi, S. A.; Masood, I.; Hashmi, M.; Hanninen, S.; Sarwar, M.; Jameel, A. Noise Reduction of Electrocardiographic Signals Using Wavelet Transforms. ELEKTRON ELEKTROTECH 2014, 20 (4), 39-42. https://doi.org/10.5755/j01.eee.20.4.6886.