Произведения
- commons.wikimedia.org wiki/File:28696.jpg
- en.wikipedia.org Jacob Hägg
- vk.com @allsailship-jacob-hagg-yakob-hagg-…
- ru.wikipedia.org Хагг, Якоб
- swedishmusicalheritage.com composers/hagg-jacob-…
- auctionet.com en/667415-jacob-hagg-sailboat-on-…
- prabook.com web/jacob.hagg/2373736
- bridgemanimages.com en/g-dagli-orti/sailing-along…
- ru.pinterest.com pin/gaffrigged-schooner-columbia…
- schoonerman.com Naval History Sailing Ships A
- bukowskis.com en/auctions/629/369-jacob-hagg-…
- sailcapecod.com the-schooner
- archive.org details/…