What do the numbers in the references represent?

J—— Journal Articles M—— Monographs (including works about history and local chronicles in ancient books) The types of reference documents are stipulated in GB3469-83 "Document Types and Document Carrier Codes". Identified with a single letter: M- monograph (including historical works in ancient books) c- anthology n- newspaper article J- periodical article d- thesis r- research report s- standard p- patent a- monograph, precipitated literature Z- other unspecified literature types-electronic literature types are identified with two letters: d b- database CP- computer program e b- electronic announcement of non-paper carrier electronic literature, and at the same time, Title [J] Volume (issue): Page 2. Monograph author. Title [m]. Version (first edition not recorded). Place of publication: publisher, year of publication: page 3. The author of the program. Title [c]. Edit. Title of the paper, place of publication: publisher, year of publication: page 4. Author of the paper. Title [D] Save the location. Save unit. The fifth year. Title of the patent document [P]. Country. Patent number. Publication date 6. Standard number. Standard name 7. Newspaper writer. Title. Newspaper name. Publication date (version) 8. Author of electronic document. Title [Identification of electronic documents and carrier types]. Source of the document, date II. Document type and its identification 1. According to GB3469, various commonly used documents are identified as follows: ① periodical [J], ② monograph [M], ③ thesis [C], ④ dissertation [D], ⑥ patent [P], ⑥ standard [S], ⑥ newspaper [N], and ⑧ technical report [R] 2. The carrier types of electronic documents are identified by two letters, as follows: ① magnetic tape [MT], ② magnetic disk [DK]. For example: ① Online online database [DB/OL] ② Tape database [DB/MT] ③ CD-ROM books [M/CD] ④ Disk software [CP/DK] ⑤ Online periodicals [J/OL] ⑤ Online electronic bulletin [EB/OL] III. For example: 1 and journal papers [1]. And solubility of other human solid solutes in supercritical fluids containing entrainers [J]. Journal of Chemical Engineering,1995 (3): 317-323 [2] Dobbs J.M., Wong J.M. Modification of phase behavior of supercritical fluids with polar solvents [j].Ind eng Chemres,/kloc. 26: 56 [3] Liu Zhongneng, study on the synthesis of gold. 4- methylimidazole [J]. Fine Chemical Industry, 2002 (2):103-105 [4] Mesquita A C, Mori M N, Vieira J M, etc. Ionization radiation polymerization of vinyl acetate [J]. Radiation Physics and Chemistry, 2002,63: 4652, monograph [1] Jiang Tingda. Luminous polysaccharide [M]. Beijing: Chemical Industry Press, 200 1. 127 [2] Cordun G. Reflection Spectroscopy [m]. New York: Spring Press, 1969 3, Essays [1] Guo Hong, Wang Xiong, Liu Zonglin. Study on the comprehensive utilization of membrane separation technology in the production of soy protein isolate [C].// Yu Lixin. Proceedings of the Third National Symposium on Membrane and Membrane Process. Beijing: Higher Education Press,1999.46438+0-425 [2] Eiben AE, Vander Hauw J K. Solving the 4th IEEE Conf Evolutionary Computation with Adaptive Genetic Algorithm. Tawei, Pisca: IEEE Press, 1997.8 1-864, Dissertation [1] Chen Jinmei. Experimental study on producing early strength and quick hardening cement with fluorgypsum (D). Xi An: Xi University of Architecture and Technology, 2000 [2] Chrisstoffells L.A.J. Carrier-promoted transport is a mechanical tool in supramolecular chemistry [D]. Netherlands: University of Twente. Patent document [1] Hasegawa, Toshiyuki, Yoshida, et al. Paper coating composition [p]. European patent 0634524.6995-01-18 [2]. Sato Shouzhao. Photosensitive resin [P] Japan, JP-A 09-26667.5438+0997-0/-28 [3] Yamaguchi K, Hayashi A. Plant growth promoter and production therapy [P].JPN, JP1290606.199. Preparation method of dialkylaminoethanol carboxylate [P]. China invention patent, cn1073429.1993-06-236, technical standard document [1] iso1210/982, plastic- Newspaper [1] Chen Zhiping. New trends in disaster reduction design and research [N]. Science and Technology Daily,1997-12-12 (5) 8. Newspaper [1] China Mechanical Engineering Society. Dense phase pneumatic conveying technology [R]. Beijing: 1996 9. Electronic literature [1] is full of gold.