Please answer the following question: What type of details about ladislav vodicka can be gathered from the following bio? Bio: ladislav vodicka -lrb- 10 january 1931 , prague - 7 march 1999 -rrb- was a czech country music singer and songwriter , who performed for the group jiri brabec and then with his own group hydrophilidae . vodicka graduated from the faculty of mechanical engineering ctu . singing began in 1961 with an amateur band tempest . in 1966 he brabec offered involvement in the group of country beat and in the same year together with him went to the semafor theatre . ladislav vodicka founded his own group in 1974 called hydrophilidae . his biggest hit was Ridic tvrdej chleba ma . -lrb- the driver has a hard bread -rrb- . throughout their careers are devoted to the singer 's style '' country '' and earned the nickname '' czech johnny cash . ''
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