Docs: fix warnings from biber
The following warnings are still created when generating the PDF:
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'Oct' in entry 'lcio' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'Apr' in entry 'chargecreation' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'Dec' in entry 'fano' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'Mar' in entry 'CdZnTe_Creation' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'Oct' in entry 'ruchkino' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'mar' in entry 'Bergmann_2020' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'Sep' in entry 'shockley-read' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'apr' in entry 'CMSTrackerTrapping' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'nov' in entry 'Mandic' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'Aug' in entry 'g4radioactive' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'Sept' in entry 'ramo' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - legacy month field 'May' in entry 'octree' is not an integer - this will probably not sort properly.
Biber warning: [862] Biber.pm:130> WARN - BibTeX subsystem: /tmp/biber_tmp_RG7W/33e59b5ca9ec342068223d604c3f8d55_40279.utf8, line 766, warning: 3 characters of junk seen at toplevel
They can be easily fixed by adjusting the references.bib
.