create Gayana journal citation style

[carzamora]

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[github-actions]

Awesome! You just created a pull request to the Citation Styles Language styles repository. One of our human volunteers will try to get in touch soon (usually within a week). In the meantime, I will run some automated checks. You should be notified of the results in a few minutes.

If you haven't done so yet, please make sure your style validates and follows all our other Style Requirements.

To update this pull request, visit the "Files changed" tab above, click on the ellipsis button in the top-right corner of your style, and then select "Edit file" to start editing:

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[github-actions]

😃 Your submission passed all our automated tests.

Below are some sample citations generated based on your proposed changes:

gayana.csl (new)

(Hancké et al. 2007; Citation Style Editor 2012)
(Mares 2001; Fenner et al. 2019)

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Citation Style Editor. 2012. CSL search by example. http://editor.citationstyles.org/searchByExample/. Accessed: December 15, 2012.
Fenner, M., Crosas, M., Grethe, J.S., Kennedy, D., Hermjakob, H., Rocca-Serra, P., Durand, G., Berjon, R., Karcher, S., et al. 2019. A data citation roadmap for scholarly data repositories. Scientific Data 6(1): 28. https://doi.org/10.1038/s41597-019-0031-8
Hancké, B., Rhodes, M., Thatcher, M. (Eds.). 2007. Beyond varieties of capitalism: Conflict, contradiction, and complementarities in the European economy. Oxford University Press, Oxford and New York.
Mares, I. 2001. Firms and the welfare state: When, why, and how does social policy matter to employers? In: Hall, P.A., Soskice, D. (Eds.) Varieties of Capitalism. The Institutional Foundations of Comparative Advantage: 184-213. Oxford University Press, New York.