Restore seems to be working, however...

Samo Penic

2019-10-19 579fbdf994b239ddcf68b1364fa3c84b2837d5c8

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Original written by Dan Kroll in FORTRAN. Code was then largely adapted and commented by Miha Fosnaric-Fosni. Rewritten into C by Samo Penic-Peni, with help of Miha's extensive explanations.