$MARS4, $MARVIN, $MATRIX, $MAV, $MAVIA, $MAXSOL, $MBOX, $MCT, $MDX, $ME, $MEI, $MELOS, $MEME, $MEMEAI, $MEMEFI, $MENGO, $MERL, $METO, $MEW, $MFT, $MIRX, $MISHA, $MKR, $MLT, $MMT, $MNB, $MNEMO, $MNRY, $MOODENG, $MOTH, $MTRG, $MUDOL2, $MVX, $MYRO, $NAO, $NAOS, $NATIX, $NAYM, $NCDT,