Do you have a citation for Schmierdorf? Using the breadcrumbs here and in your module, I turned to the Internet, hoping to find some obscure Weird Fiction. DuckDuckGo and Archive.org have turned up nothing about the author or his Antarctic Cycle. Granted, my Internet deep-search skills are rusty.
Archive.org shows seven issues of The Strategic Review Magazine. The last one is dated April 1976, and mentions that the publication will be renamed Dragon Magazine, with the first issue to be published in June 1976. I've looked at that issue, supposing that it might be what you meant by the June 1976 issue of The Strategic Review. I don't see an Appendix N in either issue #7 of The Strategic Review or #1 of Dragon.
I also appreciate that this might be a clever hoax to support your far future Antarctica games. If so, let me know and I'll delete this message.
EDIT: NEVERMIND. I just read the rules for the Appx. N Jam, especially "Your adventure will be assigned a made up Appendix N book title."