ISBN-13: 9781138530225 / Angielski / Twarda / 2017 / 179 str.
ISBN-13: 9781138530225 / Angielski / Twarda / 2017 / 179 str.
Professor David Kettler commented at the time of initial release, that this book is "writing with great poise and clarity, the author says important things in a deceptively simple way about a problem of paramount significance