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The AEA maintains EconLit, a searchable data base of citations for articles, books, reviews, dissertations, and working papers classified by JEL codes for the years from 1969. A recent addition to EconLit is indexing of economics journal articles from 1886 to 1968 [ 1 ] parallel to the print series Index of Economic Articles .
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A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board.The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15.
[5]: Q6, Q7 ResearchGate uses a crawler to find PDF versions of articles on the homepages of authors and publishers. [5]: Q6 These are then presented as if they had been uploaded to the web site by the author: [ 5 ] : Q7, Q8 the PDF will be displayed embedded in a frame, and only the button label "External Download" indicates that the file was ...
In sociology and statistics research, snowball sampling [1] (or chain sampling, chain-referral sampling, referral sampling [2] [3]) is a nonprobability sampling technique where existing study subjects recruit future subjects from among their acquaintances. Thus the sample group is said to grow like a rolling snowball.
In medicine, referral is the transfer of care for a patient from one clinician or clinic to another by request. [ 1 ] [ 2 ] Tertiary care is usually done by referral from primary or secondary medical care personnel.
Online referral marketing is the internet-based, or Software as a Service (SaaS) approach, to traditional referral marketing. By tracking customer behavior online through the use of web browser cookies and similar technology, online referral marketing can potentially increase brand awareness, referrals and, ultimately, revenue.
Library Genesis (shortened to LibGen) is a shadow library project for file-sharing access to scholarly journal articles, academic and general-interest books, images, comics, audiobooks, and magazines.