J. Krug, J.E.S. Socolar, et al.
Physical Review A
A Comment on the Letter by A. Garg Phys. Rev. Lett. 71, 4442 (1993). © 1993 The American Physical Society.
J. Krug, J.E.S. Socolar, et al.
Physical Review A
A.-L. Barabási, G. Grinstein, et al.
Physical Review Letters
G. Grinstein, John Toner
Physical Review Letters
Tomas Bohr, G. Grinstein, et al.
Physical Review Letters