@article{hatzigeorgiou_1995,

title = {Unitarization of Instanton Amplitudes},

author = {Nick Hatzigeorgiu},

year  = {1995},

date = {1995-01-01},

journal = {Phys. Rev. D51},

pages = {3090-3095},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{hatzigeorgiou_1994b,

title = {S-Wave Unitarization of High Energy Multileg Tree Graphs},

author = {Nick Hatzigeorgiu and J M Cornwall},

year  = {1994},

date = {1994-01-01},

journal = {Phys. Lett. B327},

pages = {313-318},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{hatzigeorgiou_1992,

title = {Width of Resonances in Pair Production by Strong Electric Fields},

author = {Nick Hatzigeorgiu},

year  = {1992},

date = {1992-01-01},

journal = {Phys. Lett. B280},

pages = {113-116},

keywords = {},

pubstate = {published},

tppubtype = {article}

}