To find the longest chain, longest path has to be established in the tree
for tree compounds:

* https://www.geeksforgeeks.org/longest-path-undirected-tree/

Story for the name of the project:

* https://english.stackexchange.com/questions/430516/is-there-a-word-for-the-giver-of-names

BSc thesis of Miglė Urbonaitė on ChemOnomatopist (in Lithuanian):

* https://www.lvb.lt/permalink/f/8og6ah/ELABAETD146240727

Blue Book v2 (BBv2):

* https://iupac.qmul.ac.uk/BlueBook/PDF/BlueBookV2.pdf
