Agile Software Requirements
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Writing Effective Use Cases
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Lean Software Development
Mary Poppendieck & Tom Poppendieck
Practical Approach to Large-Scale Agile Development, A
Gary Gruver, Mike Young & Pat Fulghum
Beyond Requirements
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Collaboration Explained
Jean Tabaka
Agile Software Development
Alistair Cockburn
Agile Project Management
Jim Highsmith