%A E.A. Nurminski %T On ε-Subgradient Methods of Non-Differentiable Optimization %X The theory of nondifferentiable optimization studies extremum problems of complex structure involving interactions of many subproblems, stochastic factors, multi-stage decisions and other difficulties. %P 187-195 %B International Symposium on Systems Optimization and Analysis %D 1979 %C Germany %R 10.1007/978-3-662-39921-7_18 %I Springer Berlin Heidelberg %L iiasa14047