Add design shelve

design.bib

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+@misc{func-design-architecture,
+	author = {Salim, P.},
+	title = {{Functional Design and Architecture}},
+	journal = {Manning Publications},
+	year = {2023},
+	month = apr,
+	language = {english},
+	note = {[Online; accessed 21. Apr. 2023]},
+	url = {https://www.manning.com/books/functional-design-and-architecture}
+}