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020 _a24058440
020 _a2405-8440
041 _aeng
245 _aHeliyon
260 _bElsevier
856 _uhttps://www.sciencedirect.com/science/journal/24058440
906 _a2015-09
_b1
_c1
_g2015-09
_h1
_i1
_nFull text
_oJournal
_rFree-To-Read
999 _c150948
_d150948