Home › Authors › J. Richard Hollos 👤 J. Richard Hollos 7 books Books by J. Richard Hollos Combinatorics Problems and Solutions 2024 Enigma of the Crookes Radiomet Enigma of the Crookes Radiometer 2022 Passive Butterworth Filter Coo Passive Butterworth Filter Cookbook 2021 Combinatorics II Problems and Solutions 2016 Art of Pi 2015 Art of the Golden Ratio 2015 Creating Rhythms 2014