Source: https://www.researchgate.net/profile/Toni-Bjoerninen/publication/223348367_Analysis_of_electrically_conductive_silver_ink_on_stretchable_substrates_under_tensile_load/links/5cd9169592851c4eab99f42b/Analysis-of-electrically-conductive-silver-ink-on-stretchable-substrates-under-tensile-load.pdf