UTFSE for "Sommelet Reaction" (https://www.the-hive.ws/forum/search.pl?Cat=&All_Forums=on&Text_simple=Sommelet%20Reaction&Preview=on&RatePlus=on&RateNeutral=on&Search_simple=on)
UTFSE for "Delepine Reaction" (https://www.the-hive.ws/forum/search.pl?Cat=&All_Forums=on&Text_simple=Delepine%20Reaction&Preview=on&RatePlus=on&RateNeutral=on&Search_simple=on)
Post 495772 (https://www.thevespiary.org/talk/index.php?topic=10206.msg49577200#msg49577200)
(Daphuk_up: "Sommelet vs. Delepine", Newbee Forum)Post 381907 (https://www.thevespiary.org/talk/index.php?topic=7178.msg38190700#msg38190700)
(Rhodium: "Hexamethylenetetramine (HMTA, Hexamine)", Chemistry Discourse)