article on offroad truck modifications is not available in English and probably
will never be translated as it adresses specifics that are only common in Iceland. The icelandic version is here if you can read that. You can also view the numeric model introduced in the article and
download it to your local computer. It is an Excel spreadsheet which uses
english abbrevations for technical values which are more or less self
explanatory. All equations refer to these named values for readability.
also the download page where there might be
different versions available