Found the following (possibly) invalid URLs:
  URL: ../doc/ReproducingMMNN2015.pdf
    From: man/apc.forecast.ac.Rd
  URL: ../doc/ReproducingMMNN2015.R
    From: man/apc.forecast.ac.Rd
  URL: ../doc/index.html
    From: man/apc.forecast.ac.Rd
  URL: ../doc/NewDesign.pdf
    From: man/apc.get.design.Rd
  URL: ../doc/NewDesign.R
    From: man/apc.get.design.Rd
  URL: ../doc/index.html
    From: man/apc.get.design.Rd
  URL: ../doc/NewDesign.pdf
    From: man/apc.hypothesis.Rd
  URL: ../doc/NewDesign.R
    From: man/apc.hypothesis.Rd
  URL: ../doc/index.html
    From: man/apc.hypothesis.Rd
  URL: ../doc/Identification.pdf
    From: man/apc.identify.Rd
  URL: ../doc/Identification.R
    From: man/apc.identify.Rd
  URL: ../doc/index.html
    From: man/apc.identify.Rd
  URL: ../doc/IntroductionIndividualData.pdf
    From: man/apc.indiv.compare.direct.Rd
  URL: ../doc/IntroductionIndividualData.R
    From: man/apc.indiv.compare.direct.Rd
  URL: ../doc/index.html
    From: man/apc.indiv.compare.direct.Rd
  URL: ../doc/IntroductionIndividualDataFurtherExamples.pdf
    From: man/apc.indiv.compare.direct.Rd
  URL: ../doc/IntroductionIndividualDataFurtherExamples.R
    From: man/apc.indiv.compare.direct.Rd
  URL: ../doc/IntroductionIndividualData.pdf
    From: man/apc.indiv.est.model.Rd
  URL: ../doc/IntroductionIndividualData.R
    From: man/apc.indiv.est.model.Rd
  URL: ../doc/index.html
    From: man/apc.indiv.est.model.Rd
  URL: ../doc/IntroductionIndividualDataFurtherExamples.pdf
    From: man/apc.indiv.est.model.Rd
  URL: ../doc/IntroductionIndividualDataFurtherExamples.R
    From: man/apc.indiv.est.model.Rd
  URL: ../doc/IntroductionIndividualData.pdf
    From: man/apc.indiv.model.table.Rd
  URL: ../doc/IntroductionIndividualData.R
    From: man/apc.indiv.model.table.Rd
  URL: ../doc/index.html
    From: man/apc.indiv.model.table.Rd
  URL: ../doc/IntroductionIndividualDataFurtherExamples.pdf
    From: man/apc.indiv.model.table.Rd
  URL: ../doc/IntroductionIndividualDataFurtherExamples.R
    From: man/apc.indiv.model.table.Rd
  URL: ../doc/Identification.pdf
    From: man/apc.plot.fit.Rd
  URL: ../doc/Identification.R
    From: man/apc.plot.fit.Rd
  URL: ../doc/index.html
    From: man/apc.plot.fit.Rd
  URL: ../doc/ReproducingMMNN2015.pdf
    From: man/apc.polygon.Rd
  URL: ../doc/ReproducingMMNN2015.R
    From: man/apc.polygon.Rd
  URL: ../doc/index.html
    From: man/apc.polygon.Rd
  URL: ../doc/ReproducingMMNN2015.pdf
    From: man/data.asbestos.Rd
  URL: ../doc/ReproducingMMNN2015.R
    From: man/data.asbestos.Rd
  URL: ../doc/index.html
    From: man/data.asbestos.Rd
  URL: ../doc/ReproducingKN2020.pdf
    From: man/data.loss.XL.Rd
  URL: ../doc/ReproducingKN2020.R
    From: man/data.loss.XL.Rd
  URL: ../doc/index.html
    From: man/data.loss.XL.Rd