{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T14:22:55Z","timestamp":1775053375604,"version":"3.50.1"},"reference-count":13,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2015,9,1]],"date-time":"2015-09-01T00:00:00Z","timestamp":1441065600000},"content-version":"tdm","delay-in-days":3714,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["MLQ - Math. Log. Quart."],"published-print":{"date-parts":[[2005,7]]},"DOI":"10.1002\/malq.200410035","type":"journal-article","created":{"date-parts":[[2005,6,8]],"date-time":"2005-06-08T11:16:36Z","timestamp":1118229396000},"page":"342-350","source":"Crossref","is-referenced-by-count":6,"title":["Worms, gaps, and hydras"],"prefix":"10.1002","volume":"51","author":[{"given":"Lorenzo","family":"Carlucci","sequence":"first","affiliation":[]}],"member":"311","reference":[{"key":"10.1002\/malq.200410035-BIB1","author":"Beklemishev","unstructured":"Provability algebras and proof-theoretic ordinals I. Annals Pure Appl. Logic (to appear)."},{"key":"10.1002\/malq.200410035-BIB2","author":"Beklemishev","unstructured":"The Worm Principle. Preprint 2004."},{"key":"10.1002\/malq.200410035-BIB3","author":"Beklemishev","unstructured":"Gap-embeddings of worms. Manuscript 2004 (unpublished)."},{"key":"10.1002\/malq.200410035-BIB4","author":"Boolos","unstructured":"The Logic of Provability (Cambridge University Press, Cambridge 1993)."},{"key":"10.1002\/malq.200410035-BIB5","doi-asserted-by":"crossref","first-page":"365","DOI":"10.1016\/S0304-3975(02)00332-8","volume":"300","author":"Carlucci","year":"2003","journal-title":"Theoret. Comp. Sci."},{"key":"10.1002\/malq.200410035-BIB6","doi-asserted-by":"crossref","first-page":"100","DOI":"10.2307\/2275019","volume":"54","author":"Gordeev","year":"1989","journal-title":"J. Symbolic Logic"},{"key":"10.1002\/malq.200410035-BIB7","doi-asserted-by":"crossref","first-page":"1154","DOI":"10.2307\/2275697","volume":"59","author":"Gordeev","year":"1994","journal-title":"J. Symbolic Logic"},{"key":"10.1002\/malq.200410035-BIB8","doi-asserted-by":"crossref","first-page":"249","DOI":"10.2307\/2275337","volume":"58","author":"Ignatiev","year":"1993","journal-title":"J. Symbolic Logic"},{"key":"10.1002\/malq.200410035-BIB9","doi-asserted-by":"crossref","first-page":"285","DOI":"10.1112\/blms\/14.4.285","volume":"14","author":"Kirby","year":"1982","journal-title":"Bull. London Math. Soc."},{"key":"10.1002\/malq.200410035-BIB10","author":"Lee","unstructured":"and Worms, tree-ordinals and the Sch\u00fctte-Simpson ordinal notation system for \u025b0. Preprint 2004."},{"key":"10.1002\/malq.200410035-BIB11","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1007\/BF02007558","volume":"25","author":"Sch\u00fctte","year":"1985","journal-title":"Archiv Math. Logik Grundlagenforschung"},{"key":"10.1002\/malq.200410035-BIB12","author":"Weiermann","unstructured":"Some applications of analytic combinatorics in logic. Contributed Talk at Logic Colloquium 2002."},{"key":"10.1002\/malq.200410035-BIB13","doi-asserted-by":"crossref","first-page":"553","DOI":"10.1090\/S0002-9939-03-07086-2","volume":"132","author":"Weiermann","year":"2004","journal-title":"Proc. Amer. Math. Soc."}],"container-title":["MLQ"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fmalq.200410035","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1002\/malq.200410035","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,7,3]],"date-time":"2021-07-03T13:40:03Z","timestamp":1625319603000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/malq.200410035"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2005,7]]},"references-count":13,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2005,7]]}},"URL":"https:\/\/doi.org\/10.1002\/malq.200410035","relation":{},"ISSN":["0942-5616","1521-3870"],"issn-type":[{"value":"0942-5616","type":"print"},{"value":"1521-3870","type":"electronic"}],"subject":[],"published":{"date-parts":[[2005,7]]}}}