KIM, I. J., LEE, G.H., PARK, S.B., LEE, Y.S., KIM, T.K., NAM, C. H., MOCEK, T., JAKUBCZAK, K. Generation of submicrojoule high harmonics using a long gas jet in a two-color laser field. Applied Physics Letters. 2008, 92(2), 021125/1-021125/3. ISSN 0003-6951. E-ISSN 1077-3118. Available: https://doi.org/10.1063/1.2836252