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Richard Helm (Computer scientist)

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Books

John Vlissides, Ralph Johnson, Erich Gamma, Richard Helm (Computer scientist)
Design Patterns
Elements of Reusable Object-oriented Software
Design Patterns
John Vlissides, Ralph Johnson, Erich Gamma, Richard Helm (Computer scientist)
John Vlissides, Erich Gamma, Richard Helm (Computer scientist), Ralph E. Johnson (Professor of computer science)
Design Patterns
Elements of Reusable Object-oriented Software
Design Patterns
John Vlissides, Erich Gamma, Richard Helm (Computer scientist), Ralph E. Johnson (Professor of computer science)

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