Apolonski, R. Kienberger, U. Kleineberg, F. Krausz Science 317, 769 (2007) (Highly Cited WOS) Intense 1.5-cycle near infrared laser waveforms and their use for the generation of ultra-broadband soft-x-ray harmonic [...] Goulielmakis, M. Schultze, M. Uiberacker, M. Hofstetter, U. Kleineberg and F. Krausz Acta Phys Pol A 5, 112 (2007) Powerful 170-attosecond XUV pulses generated with few-cycle laser pulses and broadband
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