eContractual choreography-language properties towards cross-organizational business collaborationNorta, Alexander; Ma, Lixin; Duan, Yucong; Rull, Addi; Kõlvart, Merit; Taveter, KuldarJournal of Internet services and applications2015 / p. 1-23 : ill https://doi.org/10.1186/s13174-015-0023-7 Journal metrics at Scopus Article at Scopus