Stretching Scientifically: A Guide to Flexibility Training
...Three items from Tom Kurz, athlete, instructor, coach,  and graduate of the University School of Physical Education in Warsaw,  Poland: a videotapeSecrets of Stretching, and two books:Stretching  ScientificallyandScience of Sports Training. Tom presents a  uniquely Eastern European look at this practical subject matter. The video  chiefly focuses on the exercises and techniques necessary to achieve  a dramatic full split position, while the books emphasize the technical aspect of stretching and sports training.