41. Obálka Creator: Říčan, Oldřich, Musilová, Zuzana, Muška, Milan, and Novák, Jindřich Type: picture and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/
42. Obálka Type: picture and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/
43. Obálka Type: picture and TEXT Language: Czech Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/
44. Obálka Type: picture and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/
45. Obálka Type: picture and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/
46. Obálka Type: picture and TEXT Language: Czech Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/
47. Obálka Type: picture and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/
48. Obálka Type: picture and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/
49. Obálka Type: picture and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/
50. Obálka Type: picture and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/