The phrase "additionally there exist" is correct and usable in written English.
It can be used to introduce supplementary information or to indicate the presence of additional items or concepts in a discussion.
Example: "Additionally, there exist several alternative solutions that could be considered for this problem."
Alternatives: "Furthermore, there are" or "In addition, there exist".
Additionally, there exist a number of studies which consider customers' satisfaction level and economic objectives.
Additionally, there exist some other solutions based on network and transport level protocols, like MIP (Mobile IP) [18] and mSCTP [19] respectively.
Additionally, there exist two harvested wood pools that are also necessary for estimating C flux: harvested wood products in use and harvested wood products in landfills [17].
Note that this is often the case in national security settings, and that additionally there exist techniques for discovering such events or issues in an automated or semi-automated manner e.g., [24, 27].
Additionally, there exist some time-delay systems which can be transformed into neutral systems by model transformation, including lossless transmission model, standard delay systems, and standard distributed delay systems (see [9]).
Additionally, there exist many problems that cannot be ignored when big data is applied to safety science, most outstanding of which is lack of universal supporting theory that guides how to apply big data to safety science research like methods, principles and approaches, etc.
Additionally, there exists two equilibrium points which are functions of the input saturation level.
Additionally, there exists a research area focusing on the human eye movement patterns during the perception of scenes and objects.
Additionally, there exists a maximum at 3.43 eV which is due to the contributions of the Fe3+ ligand field transitions 6A1 → 4E 4D) and 6A1 → 4 T2(4D) [13].
Additionally, there exists (mu_{1}) such that overline{h}'(t geq-muoverline{v}_{x} bigl(t geq-muoverline{v}igr),quad forall muleqmu_{x}.
Additionally there exists a constant (C_{F}>0) depending only on F so that ({ int_{F} vert h(x vert,mathrm{d}x le C_{F} Vert h Vert _{X} }) holds for all (hin X). 2.
