2nd order Sallen-Key Bandpass filter design in Matlab - Electrical Engineering Stack Exchange
Webench: Low pass sallen key filter using single supply for audio transmission. - Simulation, hardware & system design tools forum - Simulation, hardware & system design tools - TI E2E support forums
Sallen-Key Active Butterworth Low Pass Filter Calculator
Low-Sensitivity Sallen-Key Filter Design with the HP-41C Programmable Calculator
Sallen and Key Filter Design for Second Order RC Filters