@article{700095,
     title = {The Yang-Mills gradient flow in four dimensions},
     booktitle = {Equadiff 8},
     series = {GDML\_Books},
     publisher = {Mathematical Institute, Slovak Academy of Sciences},
     address = {Bratislava},
     year = {1994},
     pages = {213-216},
     mrnumber = {MR1298473},
     zbl = {0807.58011},
     url = {http://dml.mathdoc.fr/item/700095}
}

Struwe, Michael. The Yang-Mills gradient flow in four dimensions, dans Equadiff 8, GDML_Books,  (1994), pp. 213-216. http://gdmltest.u-ga.fr/item/700095/