by Helmke, U.
Published in Systems & control letters (01.06.2009)

by Dirr, G., Helmke, U., Rüppel, F.
Published in Mathematics of control, signals, and systems (01.06.2016)

by Dirr, G., Helmke, U., Kurniawan, I., Schulte-Herbrüggen, T.
Published in Reports on mathematical physics (01.08.2009)

by Curtef, O., Dirr, G., Helmke, U.
Published in SIAM journal on matrix analysis and applications (01.01.2012)

by Colonius, F., Helmke, U.
Published in Zeitschrift für angewandte Mathematik und Mechanik (22.04.2014)

by Helmke, U., Verriest, E. I.
Published in Mathematics of control, signals, and systems (01.12.2011)

by Rüppel, F., Helmke, U.
Published in Zeitschrift für angewandte Mathematik und Mechanik (22.04.2014)

by Fuhrmann, P. A., Helmke, U.
Published in Mathematics of control, signals, and systems (01.08.2011)

by Fuhrmann, P.A., Helmke, U.
Published in Linear algebra and its applications (15.01.2010)

by Fuhrmann, P.A., Helmke, U.
Published in Linear algebra and its applications (01.05.2010)

by Rami, M. Ait, Helmke, U., Moore, J. B.
Published in Journal of global optimization (01.05.2007)

by Dirr, G., helmke, U., Hüper, K., Kleinsteuber, M., Liu, Y.
Published in Journal of global optimization (01.07.2006)

by Puerta, X., Helmke, U.
Published in Systems & control letters (15.06.2000)

by Dirr, G., Helmke, U., Kleinsteuber, M.
Published in Linear algebra and its applications (01.03.2006)

by KLEINSTEUBER, M, HELMKE, U, HÜPER, K
Published in SIAM journal on matrix analysis and applications (01.01.2004)

by Dirr, G., Helmke, U.
Published in Mitteilungen der Gesellschaft für Angewandte Mathematik und Mechanik (01.03.2008)

by Fuhrmann, P.A., Helmke, U.
Published in Linear algebra and its applications (01.08.2001)

by Helmke, U., Fuhrmann, P.A.
Published in Systems & control letters (15.09.2000)

by Helmke, U., Hüper, K.
Published in Systems & control letters (28.01.2000)

by Hinrichsen, D., Manthey, W., Helmke, U.
Published in Linear algebra and its applications (15.03.2001)