Michal Lev-Ram. Slack's quest to make work easier / by Michal Lev-Ram. - Hong Kong: Time Asia Limited, c2017.. - pages 17-18. 26.8cm. - Monthly. - Volume 176, Number 1 (July 1, 2017) - Fortune. . - Fortune, Volume 176, Number 1 0738-5587 . ISSN: 0738-5587 Subjects--Topical Terms: Technology - Business Dewey Class. No.: BPer.650.0519 / F77. 2017