http://nfml.yonsei.ac.kr/gnuboard4/data/file/publication/2776907207_rndHpv9m_2009-5_Influence_of_Fluid_Physical_Properties_on_Ink-Jet_Printability.pdf
https://www.researchgate.net/profile/Herman_Wijshoff/publication/238935823_The_dynamics_of_the_piezo_inkjet_printhead_operation/links/543fb7980cf21227a11af742.pdf
https://www.mvm.kit.edu/download/Ayoung_Lee_2012.pdf
http://oasis.postech.ac.kr/bitstream/2014.oak/12552/1/OAIR003351.pdf
http://web.dcsc.tudelft.nl/~xbombois/CEPamol.pdf
https://www.repository.cam.ac.uk/bitstream/handle/1810/256894/Hoath-2015-NIP_%26_Digital_Fabrication_Conference-AM.pdf?sequence=1&isAllowed=y