Home › Authors › Lorenz Constien 👤 Lorenz Constien 2 books Books by Lorenz Constien 25FTM09, Investigations on the 25FTM09, Investigations on the Wear Behavior of Plastic Crossed Helical Gears 2025 25FTM22, Efficiency of Bevel a 25FTM22, Efficiency of Bevel and Hypoid Gears - Calculation Approach and Comparison with Experimental Test Results 2025