Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Marco Johannes Maier <marco_maier@posteo.de>’
  
  Found the following (possibly) invalid URLs:
    URL: https://epub.wu.ac.at/4077/
      From: inst/CITATION
            inst/NEWS.Rd
            inst/doc/DirichletReg-vig.html
      Status: Error
      Message: SSL peer certificate or SSH remote key was not OK [epub.wu.ac.at]: server verification failed: certificate has expired. (CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none)

No changes to worse in reverse depends.