Edition Musica Budapest Lajos Montag: Double Bass Method Vol. V
additional eight thumb positions - pieces with a variety of fingerings
Edition Musica Budapest Lajos Montag: Double Bass Method Vol. IV
four positions of thumb positions - disposition exercise for low position
Edition Musica Budapest Lajos Montag: Double Bass Method Vol. IIIb
bow technique and exercises - special notations - pieces by Hungarian composers
Edition Musica Budapest Lajos Montag: Double Bass Method Vol. IIIa
intervals - minor scales - varied exercising material