{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,14]],"date-time":"2026-03-14T18:57:31Z","timestamp":1773514651799,"version":"3.50.1"},"publisher-location":"Cham","reference-count":0,"publisher":"Springer International Publishing","isbn-type":[{"value":"9783030673567","type":"print"},{"value":"9783030673574","type":"electronic"}],"license":[{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"},{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021]]},"DOI":"10.1007\/978-3-030-67357-4","type":"book","created":{"date-parts":[[2021,4,2]],"date-time":"2021-04-02T15:02:46Z","timestamp":1617375766000},"source":"Crossref","is-referenced-by-count":6,"title":["Introduction to Digital Communications"],"prefix":"10.1007","author":[{"given":"Joachim","family":"Speidel","sequence":"first","affiliation":[]}],"member":"297","container-title":["Signals and Communication Technology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/978-3-030-67357-4.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/978-3-030-67357-4","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,9,3]],"date-time":"2022-09-03T01:27:25Z","timestamp":1662168445000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/978-3-030-67357-4"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021]]},"ISBN":["9783030673567","9783030673574"],"references-count":0,"URL":"https:\/\/doi.org\/10.1007\/978-3-030-67357-4","relation":{},"ISSN":["1860-4862","1860-4870"],"issn-type":[{"value":"1860-4862","type":"print"},{"value":"1860-4870","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021]]}}}