@Book{GangOfFour,
  author     = "Erich {Gamma} and Richard {Helm} and Ralph {Johnson} and John {Vlissides}",
  author-ref = "Gamma, et al.",
  title      = "Design Patterns: Elements of Reusable Object-Oriented Software",
  publisher  = "Addison-Wesley",
  year       = 1994,
  address    = "Reading, Mass.",
  pages      = 395,
  isbn       = "0-201-63361-2",
  url        = "http://en.wikipedia.org/wiki/Design_Patterns"
}
 
@Article{Knuth1985,
  author    = "Donald Knuth",
  title     = "Deciphering a linear congruential encryption",
  journal   = "IEEE Transactions on Information Theory",
  volume    = "31(1)",
  year      = 1985,
  month     = "Jan",
  publisher = "IEEE",
  pages     = "49-52",
  issn      = "0018-9448",
  url       = "http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1056997"
}
 
@misc{NSPECodeOfEthics, 
  title={Code of Ethics}, 
  url={http://www.nspe.org/resources/ethics/code-ethics}, 
  journal={Code of Ethics}, 
  author={N.S.P.E}, 
  year={2007}, 
  month={Jul}}
 
@misc{Markgraf, 
  title={Ethical Practices in Sales & Marketing}, 
  url={http://smallbusiness.chron.com/ethical-practices-sales-marketing-64319.html}, 
  journal={Small Business}, 
  publisher={Demand Media}, 
  author={Bert Markgraf}}
 
@misc{PineManorCollege, 
title={Academic Ethics and Integrity}, 
url={http://www.pmc.edu/academic-ethics-and-integrity}, 
journal={Pine Manor College}, 
author={College, Pine Manor}, 
year={2010}}
 
@misc{Rinkesh, 
title={What are Environmental Ethics? - Conserve Energy Future}, 
url={http://www.conserve-energy-future.com/environmental-ethics.php}, 
journal={ConserveEnergyFuture}, 
author={Rinkesh}, 
year={2014}, 
month={Jan}}
 
@misc{Cochrane, 
title={Internet Encyclopedia of Philosophy}, 
url={http://www.iep.utm.edu/envi-eth/}, 
journal={Internet Encyclopedia of Philosophy}, 
author={Cochrane, Alasdair}}
 
@misc{RiskManagement, 
title={10 GOLDEN RULES OF PROJECT RISK MANAGEMENT}, 
url={https://www.projectsmart.co.uk/10-golden-rules-of-project-risk-management.php}, 
journal={Project Smart}, 
author={Bart, Jutte}}
 
@misc{CostManagement, 
title={PROJECT COST
MANAGEMENT}, 
url={http://www.bus.iastate.edu/nilakant/ProjectMgmt/pmbok7.pdf}, 
journal={Project Management Institute}, 
author={Upper,Darby}}
 
@misc{Leaflet, 
title={Leaflet}, 
url={http://www.eps2016-wiki1.dee.isep.ipp.pt/lib/exe/fetch.php?media=flyer2.pdf}, 
author={Pattiselano,Nona}}
 
 
@misc{FB-page, 
title={The FaceBook Page for the Drawbot}, 
url={https://www.facebook.com/drawbot1/?fref=ts}, 
author={Project team,}}
 
@misc{Trends, 
title={Different trends}, 
url={http://trendwatching.com/trends/5-trends-for-2016/}, 
journal={Trend watching}, 
}
 
@misc{SoederbaumP, 
author= "Soederbaum",
title="Understanding Sustainability Economics", 
url="https://en.wikipedia.org/wiki/Sustainability", 
journal="Understanding Sustainability Economics", 
}
 
@misc{ BlewittJ, 
author= "Blewitt",
title="​Understanding Sustainable Development", 
url="http://www.academia.edu/9576247/_John_Blewitt_Understanding_Sustainable_Development_Book_ZZ_org_", 
journal="Understanding Sustainable Development", 
}
 
@misc{DalyHE, 
author= "Daly",
title="Natural Capitalism: Creating the next Industrial Revolution", 
url="https://www.researchgate.net/publication/4839159_Toward_Some_Operational_Principles_of_Sustainable_Development", 
journal="Creating the next Industrial Revolution", 
}
 
@misc{ISO, 
title="Life Cycle Assessment", 
url="http://www.gdrc.org/uem/lca/lca-define.html", 
journal="Principles and Guidelines", 
}
 
@misc{Cork, 
title="How to Install Cork Flooring", 
url="http://construction.about.com/od/Finishes/a/Cork-Flooring-Benefits-And-Disadvantages-Of-Cork-Flooring.htm", 
journal="How to Install Cork Flooring", 
}
 
@misc{EnergyC, 
title="Energy conservation vs. energy efficiency", 
url="https://en.wikipedia.org/wiki/Energy_conservation", 
journal="Natural Resources Canada", 
}
 
@misc{Wood, 
title="Wood as an engineering material", 
url="http://www.doitpoms.ac.uk/tlplib/wood/engr_mater.php", 
journal="Wood as an engineering material", 
}
 
@misc{Glass, 
title="The advantages and disadvantages of glass fiber", 
url="http://www.resinpu.com/h/Technology/FAQ/2015/0509/259.html", 
journal="The general situation of glass fiber", 
}
 
@Book{Social,
  title      = "Portugal social situation and employment",
  publisher  = "European Parliament",
  year       = 2015,
  pages      = 35,
  url        = "http://en.wikipedia.org/wiki/Design_Patterns"
}
 
@Book{Safety,
  title      = "European safety regulations",
  publisher  = "European Comission",
  url        = "http://ec.europa.eu/growth/sectors/toys/safety/index_en.htm"
}
 
@Book{Siegwart,
  author     = "Roland Sieguart, Illah R. Nourbakhsh",
  title      = "Autonomus Mobile Robots",
}
 
@misc{1_eur-lex - 32009l0048 - en - eur-lex_2016,[break] 
url={http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32009L0048},[break] 
urldate={2016-6-7},[break] 
journal={Eur-lex.europa.eu},[break] 
year={2016}