Stationary waves in ionosphere
Subtitle: Time taken by the radio signal sent out vertically to the ground
Series: Łódzkie Tow. Naukowe. Wydział III. [Prace] -- nr. 15; Prace Wydziału III--Nauk Matematyczno-Przyrodniczych -- nr. 15
Publisher: Skł. gł. Kaiąz̊ka i Wiedza
Published: 1949
Place of publication: Łódź
Language: eng
Number of pages: 15
Notes: Summary in Polish.

Time taken by the radio signal sent out vertically to the ground.