@TECHREPORT {ESG03b,
     AUTHOR = {{van den Eshof}, Jasper and Sleijpen, Gerard L. G.
              and {van~Gijzen}, Martin B.},
      TITLE = {Relaxation strategies for nested {K}rylov methods},
       TYPE = {Preprint},
     NUMBER = {1268},
INSTITUTION = {Dep. Math., University Utrecht},
    ADDRESS = {Utrecht, the Netherlands},
      MONTH = {March},
       YEAR = {2003},}


@ARTICLE  {ESl05b,
   AUTHOR = {{van den Eshof}, Jasper and Sleijpen, Gerard L. G.
              and {van~\-Gij\-zen}, Martin B.},
    TITLE = {Relaxation strategies for nested {K}rylov methods},
  JOURNAL = {J. Comput. Appl. Math.},
 FJOURNAL = {Journal of Computational and Applied Mathematics},
   VOLUME = {177},
     YEAR = {2005},
   NUMBER = {2},
    PAGES = {347-365},
     ISSN = {},
    CODEN = {},}