Travell Janet G. - Simons David. Myofascial Pain and Dysfunction. Lippincott Williams and Wilkins 2018. Available on Internet: <https://www.libristo.cz/cs/kniha/travell-simons-simons-myofascial-pain-and-dysfunction_04693347?gad_source=1&gclid=CjwKCAiAopuvBhBCEiwAm8jaMX9vGajzBB9GuKhG13CVTVm77O1THbynrvQrO8XQhyqm1VS9RSXKGRoC86oQAvD_BwE> ISBN 0781755603.