Frederick William Lanchester, Aerodynamics, constituting the first volume of a complete work on aerial flight… (1906)
“ Peripteroid Motion. 123. Energy in the Periptery. 124. Modified Systems. 125. Peripteroid Motion in a Simply-connected Region. 126. Peripteral Motion in a Real Fluid. 127. Peripteral Motion in a Real Fluid—continued. ”
