@article{aup:/content/journals/10.5117/SH2022.1.009_WEST, author = "Westra, Koos and Huges, Dick", title = "John Harrison en zijn H4 zeehorloge", journal= "Scheepshistorie", year = "2022", volume = "31", number = "1", pages = "50-63", doi = "https://doi.org/10.5117/SH2022.1.009_WEST", url = "https://www.aup-online.com/content/journals/10.5117/SH2022.1.009_WEST", publisher = "Amsterdam University Press", issn = "2949-7035", type = "Journal Article", }