Experoment, Theorie, Praxis : Aufsätze und Reden /
Fizičeskije zadači. /
Eksperiment, teorija, praktika : staťji, vystuplenia /
Eksperiment, teorija, praktika : sta´ji i vystuplenia /
Experiment /
Spoločnosť a životné prostredie /
Experiences : teacher´s book /
Experiences : student´s book /
Experiment : conversation in art and science /
Polarographic experiments /
Experiment s nevěrou /
Delpassův experiment.
Krutý experiment /
The Peckham experiment /
Experiments with Poa /
Experiments in chemistry /
The western experience. /
The theater experience /
Experiment, teorie, praxe /