@techreport{GriewankStreubelLehmannetal.2016, author = {Andreas Griewank and Tom Streubel and Lutz Lehmann and Richard Hasenfelder and Manuel Radons}, title = {Piecewise linear secant approximation via Algorithmic Piecewise Differentiation}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {16-54}, language = {eng}, year = {2016} }