1.d4 Nf6 2.c4 d6 3.Nc3 Bf5 I have a few books that cover this.
- Schiller (1990) Janowski Indian Defence, 58 pages
- Yrjölä/Tella (2001) An Explosive Chess Opening Repertoire for Black, pages 240-252
- Cherniaev/Prokuronov (2011) The New Old Indian, pages 99-107
4.f3 e5 5.e4 exd4 6.Qxd4 Be6 Suba - V.Georgiev, Balaguer op 1997
https://www.365chess.com/game.php?gid=1215683 (or 6...Nc6 first and then 7...Be6) This is game 21 in Cherniaev/Prokuronov. All three books consider black has enough counterplay in this line.
4.g3 c6 5.Bg2 g6 6.e4 Be6 Ligterink - Mestel, Marbella zt 1982
https://www.365chess.com/game.php?gid=2340144 Schiller's main line against 4.g3, and also his game 4. Yrjölä/Tella skip it (4...e5!). Cherniaev/Prokuronov have this in a note with 4...c6!?, saying "this doesn't have to be fatal for him".
4.g3 e5 5.Bg2 Nc6 6.d5 Nd4 7.e4 Bg4 8.f3 Bd7 9.Nge2 c5 Piket - I.Sokolov, Donner mem Amsterdam 1996
https://www.365chess.com/game.php?gid=1391380 A difference of opinion here as Yrjölä/Tella give 4...e5! and 9...c5!, and give more analysis of this game. But Cherniaev/Prokuronov merely say 9...c5 is "an alternative" and offer the improvement 14.b3! +=.
4.g3 e5 5.Bg2 Nc6 6.d5 Nd4 7.e4 Bg4 8.f3 Bd7 9.Nge2 Nxe2 G.Andruet - M.Benoit, Val Maubuee 1990
https://www.365chess.com/game.php?gid=2103772 Another difference of opinion as Yrjölä/Tella dismiss this with 12.f5! +/-. But Cherniaev/Prokuronov give this as their main game with 4.g3 and annotate 12.f5?!. After 16...Ng4 they say "Black has excellent prospects."
"Alekhine's
4.g3 is a tough nut to crack and seems to give White slightly the better chances." - Cherniaev/Prokuronov
"
4.Nf3 This move, simply developing a piece, seems to be White's strongest option." - Yrjölä/Tella