I should know the answer to this question, but is there a place that lists the abbreviations for different texts. For example, the NET (Mark 16:9) list several texts that support the longer ending in Mark and those that do not. Below is a portion of the textual note from the NET Bible, Mark 16:9.
The Gospel of Mark ends at this point in some witnesses א B 304 sys sams armmss Eus Eusmss Hiermss), including two of the most respected mss (א
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This shorter ending is usually included with the longer ending (LΨ 083 099 0112 579 al); k, however, ends at this point. Most mss include the longer ending (vv. 9–20) immediately after v. 8 (A C D W [which has a different shorter ending between vv. 14 and 15] Θ f13 33 2427 𝔐 lat syc,p,h bo);
Thanks,
Ron