[Interchange of various classes in school schedule].
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Appointments and Schedules↗
Biomedical subjects
L E LIUBOMIRSKII
Publications and source records attributed to L E LIUBOMIRSKII.
[Hygienic evaluation of carpentry tools for fourth and fifth grade students].
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Humans↗
[Hygienic principles in determining the size of machine shop tools for students of the 5-7 grades].
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Ergonomics↗