@book{gamma1995design, address = {Amsterdam}, asin = {0201633612}, author = {Gamma, Erich and Helm, Richard and Johnson, Ralph E.}, dewey = {005.12}, ean = {9780201633610}, edition = {1st ed., Reprint.}, interhash = {148e2a0e691f5457c157fd00f4aeb638}, intrahash = {a9d7c71c38d471b32c94dcb331a09961}, isbn = {0201633612}, publisher = {Addison-Wesley Longman}, title = {Design Patterns. Elements of Reusable Object-Oriented Software.}, url = {http://www.amazon.de/Patterns-Elements-Reusable-Object-Oriented-Software/dp/0201633612%3FSubscriptionId%3D13CT5CVB80YFWJEPWS02%26tag%3Dws%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3D0201633612}, year = 1995 }