I remember my postdoc mentor telling me this anecdote about another student of his PhD advisor: "He published this result in this journal, which later disappea

I remember my postdoc mentor telling me this anecdote about another student of his PhD advisor: "He published this result in this journal, which later disappeared. And I mean it literally, it was printed on acid paper which dissolved in the air over time." Fortunately, that paper was digitized, I could download it.