https://lexanteinternet.blogspot.com/2017/02/the-sherdian-enterprise-for-february-11.html
Lex Anteinternet: The Sherdian Enterprise for February 11, 1917; Austrian officers dudes no more,...
The Sherdian Enterprise for February 11, 1917; Austrian officers dudes no more, U.S. reestablished diplomatic relations with Mexico
https://marcus.uib.no/instance/manuscript/ubb-ms-0230-b-48-1842-37.html
Medbeilerne, Comedie i 5 Acter efter; "The Rivals" af Sherdian, ved N.T. Bruun - Marcus
Teaterplakat 26 oktober 1842