"795044" - 1 õppematerjal

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11.2007 54. http://en.wikipedia.org/wiki/Crane_(machine)#History_of_cranes 25.11.2007 55. http://www.steelbuilding.com/buildings/frame_types.htm 25.11.2007 56. http://web.njit.edu/~taher/History%20of%20Concrete%20Building %20Construction.pdf 25.11.2007 57. http://www.concretenetwork.com/concrete-history/ 25.11.2007 58. http://www.ce.memphis.edu/1101/notes/concrete/section_2_history.html 25.11.2007 59. http://ezinearticles.com/?The-History-Of-Steel-Reinforced-Concrete&id=795044 25.11.2007 60. http://www.nfba.org/i4a/pages/index.cfm?pageid=3538 26.11.2007 61. http://www.deeconcrete.com/concretehistory5.html 26.11.2007 62. http://www.sensiblehouse.org/tu_history.shtml 26.11.2007 63. http://www.graymont.com/applications_history_lime_mortar.shtml 26.11.2007 64. http://www.suite101.com/article.cfm/building_construction/36885 26.11.2007 65. http://www.buildingconservation.com/directory/ad229.htm 26.11.2007 66. http://www.ice.org.uk/knowledge/document_details.asp