Scrum - Tim Cummins - Erwin Oord - Bob Schat - Keith Heston - Kees Louwman - Laurent Kummer - Bert Hedeman

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Publications - Scrum - Tim Cummins - Erwin Oord - Bob Schat - Keith Heston - Kees Louwman - Laurent Kummer - Bert Hedeman - Nader Rad