acta-zoologica-academiae-scientiarum-hungaricae: name nodes must have valid et-al-min and et-al-use-first attributes

expected et-al-min () and et-al-use-first (1) to be of same type

(Hancké et al. 2007; Anon 2012)
(Mares 2001; Fenner et al. 2019)

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Anon. (2012): CSL search by example. Citation Style Editor.
Fenner, M., Crosas, M., Grethe, J. S., Kennedy, D., Hermjakob, H., Rocca-Serra, P., Durand, G., Berjon, R., Karcher, S., Martone, M. & Clark, T. (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? Pp. 184–213. In: Hall, P.A. & Soskice, D. (eds): Varieties of capitalism. The institutional foundations of comparative advantage. Oxford University Press, New York.

(Hancké et al. 2007; Anon 2012)
(Mares 2001; Fenner et al. 2019)

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Anon. (2012): CSL search by example. Citation Style Editor.
Fenner, M., Crosas, M., Grethe, J. S., Kennedy, D., Hermjakob, H., Rocca-Serra, P., Durand, G., Berjon, R., Karcher, S., Martone, M. & Clark, T. (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? Pp. 184–213. In: Hall, P.A. & Soskice, D. (eds): Varieties of capitalism. The institutional foundations of comparative advantage. Oxford University Press, New York.