The discussion centers on the search for reliable sources for the Hall coefficients of tungsten and silver. Initial suggestions included a PDF with experimentally determined coefficients and a response from a Cramster user, but these were later deemed insufficient as proper sources. The original poster later found a potentially credible source that is password protected, indicating ongoing challenges in accessing reliable data. The conversation highlights the difficulty in finding authoritative references for specific scientific values. Ultimately, the quest for credible information on Hall coefficients remains a challenge.