கேள்வி: கார்ல் குதே யான்சுகி - தேர்ந்தெடுத்த எழுத்துகள் குறித்து விரிவாக சொல்லுங்கள்.
பதில்: *1932: [http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=1685061 Directional studies of atmospherics at high frequencies], Proc. IRE, 20, p.&nbsp;1920. *1933: [http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=1685232 Electrical disturbances apparently of extraterrestrial origin], Proc. IRE, 21, p.&nbsp;1387. ( in Proc. IEEE, vol. 86, no. 7 (July 1998), pp.&nbsp;1510–1515.) Published with the reprint is an explanatory article . *1933: "Radio waves from outside the solar system", Nature, 132, p.&nbsp;66. *1933: "Electrical phenomena that apparently are of interstellar origin", Popular Astronomy, 41, p.&nbsp;548, Dec., 1933. *1935: [http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=1685771 A note on the source of interstellar interference], Proc. IRE, 23, p.&nbsp;1158. *1937: [http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=1686314 Minimum noise levels obtained on short-wave radio receiving systems], Proc. IRE, 25, p.&nbsp;1517.