On the growth and form of spherulites
1Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, P.O. Box 49, Budapest H-1525, Hungary
2BCAST, Brunel University, Uxbridge, Middlesex, UB8 3PH, United Kingdom
3Metallurgy Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
4Polymers Division, National Institute of Standards and Technology,Gaithersburg, MD, 20899, USA