https://iodata.readthedocs.io/en/latest/pyapi/iodata.test.test_molekel.html
iodata.test.test_molekel module - IOData 1.0
iodatatestmodule
https://tpi.wikipedia.org/wiki/Molekel
Molekel - Wikipedia
wikipedia
https://iodata.readthedocs.io/en/latest/pyapi/iodata.formats.molekel.html
iodata.formats.molekel module - IOData 1.0
iodataformatsmodule