{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,5]],"date-time":"2026-04-05T15:24:58Z","timestamp":1775402698807,"version":"3.50.1"},"reference-count":8,"publisher":"Pleiades Publishing Ltd","issue":"1","license":[{"start":{"date-parts":[[2006,1,1]],"date-time":"2006-01-01T00:00:00Z","timestamp":1136073600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2006,1,1]],"date-time":"2006-01-01T00:00:00Z","timestamp":1136073600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Crystallogr. Rep."],"published-print":{"date-parts":[[2006,1]]},"DOI":"10.1134\/s1063774506010184","type":"journal-article","created":{"date-parts":[[2006,2,27]],"date-time":"2006-02-27T12:28:42Z","timestamp":1141043322000},"page":"104-109","source":"Crossref","is-referenced-by-count":2,"title":["Topological approach to investigation of acoustic axes in crystals"],"prefix":"10.1134","volume":"51","author":[{"given":"D. A.","family":"Vorotnikov","sequence":"first","affiliation":[]},{"given":"B. M.","family":"Darinski\u012d","sequence":"additional","affiliation":[]},{"given":"V. G.","family":"Zvyagin","sequence":"additional","affiliation":[]}],"member":"137","reference":[{"issue":"39","key":"1018_CR1","first-page":"922","volume":"89","author":"V. I. Alshits","year":"1985","unstructured":"V. I. Alshits, A. V. Sarychev, and A. L. Shuvalov, Zh. \u00c9ksp. Teor. Fiz. 89 (3(9)), 922 (1985) [Sov. Phys. JETP 62, 531 (1985)].","journal-title":"Zh. \u00c9ksp. Teor. Fiz."},{"issue":"5","key":"1018_CR2","first-page":"773","volume":"39","author":"B. M. Darinski\u012d","year":"1994","unstructured":"B. M. Darinski\u012d, Kristallografiya 39 (5), 773 (1994) [Crystallogr. Rep. 39, 697 (1994)].","journal-title":"Kristallografiya"},{"key":"1018_CR3","volume-title":"Geometrical Methods of Nonlinear Analysis","author":"M. A. Krasnosel\u2019ski\u012d","year":"1975","unstructured":"M. A. Krasnosel\u2019ski\u012d and P. P. Zabre\u012dko, Geometrical Methods of Nonlinear Analysis (Nauka, Moscow, 1975; Springer, Berlin, 1984)."},{"key":"1018_CR4","volume-title":"Degree Theory","author":"N. G. Lloyd","year":"1978","unstructured":"N. G. Lloyd, Degree Theory (Cambridge University Press, Cambridge, 1978)."},{"key":"1018_CR5","volume-title":"Introduction to Topology","author":"Yu. G. Borisovich","year":"1995","unstructured":"Yu. G. Borisovich, N. M. Bliznyakov, Ya. A. Izrailevich, and T. N. Fomenko, Introduction to Topology (Nauka, Moscow, 1995) [in Russian]."},{"key":"1018_CR6","volume-title":"Descriptive Topology","author":"V. V. Prasolov","year":"1995","unstructured":"V. V. Prasolov, Descriptive Topology (MTsNMO, Moscow, 1995; Amer. Math. Soc., Providence, RI, 1995)."},{"key":"1018_CR7","volume-title":"Theory of Elastic Waves in Crystals","author":"F. I. Fedorov","year":"1965","unstructured":"F. I. Fedorov, Theory of Elastic Waves in Crystals (Nauka, Moscow, 1965; Plenum Press, New York, 1968)."},{"key":"1018_CR8","doi-asserted-by":"crossref","DOI":"10.1017\/CBO9780511810817","volume-title":"Matrix Analysis","author":"R. Horn","year":"1985","unstructured":"R. Horn and C. Johnson, Matrix Analysis (Cambridge Univ. Press, Cambridge, 1985; Mir, Moscow, 1989)."}],"container-title":["Crystallography Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1134\/S1063774506010184.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1134\/S1063774506010184","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1134\/S1063774506010184","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1134\/S1063774506010184.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,17]],"date-time":"2026-03-17T18:41:19Z","timestamp":1773772879000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1134\/S1063774506010184"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,1]]},"references-count":8,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2006,1]]}},"alternative-id":["1018"],"URL":"https:\/\/doi.org\/10.1134\/s1063774506010184","relation":{},"ISSN":["1063-7745","1562-689X"],"issn-type":[{"value":"1063-7745","type":"print"},{"value":"1562-689X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2006,1]]}}}