Is it an ADS bibcode?
See also
Other scibio detectors:
is_asin(),
is_ensembl_id(),
is_icd10_code(),
is_icd9_code(),
is_snp_id(),
is_uniprot_id()
Examples
is_bibcode(c("2004PASP..116...98K", "2003A&A...405..175M", NA))
#> [1] TRUE TRUE NA