_:B987a6a8f01586fa04d6f8235aa0c32eb . . "621.39"^^ . . "telecommunicatietechniek"@nl . . . _:B987a6a8f01586fa04d6f8235aa0c32eb . _:B987a6a8f01586fa04d6f8235aa0c32eb . _:B987a6a8f01586fa04d6f8235aa0c32eb "2021-09-24"^^ . _:B987a6a8f01586fa04d6f8235aa0c32eb . _:B987a6a8f01586fa04d6f8235aa0c32eb . _:B987a6a8f01586fa04d6f8235aa0c32eb "075623838" . _:B987a6a8f01586fa04d6f8235aa0c32eb . _:B987a6a8f01586fa04d6f8235aa0c32eb . _:B987a6a8f01586fa04d6f8235aa0c32eb .