1 http://hdl.handle.net/10338.dmlcz/103133 1 A survey of error analysis of matrix algorithms http://hdl.handle.net/10338.dmlcz/103140 A survey of error analysis of matrix algorithms Practical aspects of interval computation http://hdl.handle.net/10338.dmlcz/103139 Practical aspects of interval computation Least squares, singular values and matrix approximations http://hdl.handle.net/10338.dmlcz/103138 Least squares, singular values and matrix approximations Über die Optimierung von numerischen Algorithmen http://hdl.handle.net/10338.dmlcz/103137 Über die Optimierung von numerischen Algorithmen